TODAY! Seminar: Gamma-Ray Computed Radiography using a Fluorochlorozirconate Glass-Ceramic Storage Phosphor Plate by Dr. Jacqueline A. Johnson 1.30.15 9:30-10:30am/ CREOL RM 103

Seminar: Gamma-Ray Computed Radiography using a Fluorochlorozirconate Glass-Ceramic Storage Phosphor Plate by Dr. Jacqueline A. Johnson

Friday, January 30, 2015 9:30 AM to 10:30 AM
CREOL Room 103

Celebrating the International Year of Light 2015

Jacqueline A. Johnson

Department of Mechanical, Aerospace, and Biomedical Engineering,
University of Tennessee Space Institute

Abstract:

A fluorochlorozirconate (FCZ) glass-ceramic containing orthorhombic barium chloride crystals doped with divalent europium was evaluated for use as a storage phosphor in gamma-ray imaging. X-ray diffraction and phosphorimetry of the glass-ceramic sample showed the presence of a significant amount of orthorhombic barium chloride crystals in the glass matrix. Transmission electron microscopy and scanning electron microscopy were used to identify crystal size, structure, and morphology.  The size of the orthorhombic barium chloride crystals in the FCZ glass matrix was very large, ~0.5-0.7 μm, which can limit image resolution. The FCZ glass-ceramic sample was exposed to 1 MeV gamma rays to determine its photostimulated emission characteristics at high energies, which were found to be suitable for imaging applications.  Test images were made at 2 MeV energies using gap and step wedge phantoms. Gaps as small as 101.6 µm in a 440 stainless steel phantom were imaged using the sample imaging plate. Analysis of an image created using a depleted uranium step wedge phantom showed that emission is proportional to incident energy at the sample. The results showed that the sample imaging plate has potential for gamma-ray computed radiography and dosimetry applications.

Keywords: functional composites; glasses; ceramics; non-destructive testing.

Biography:

Dr. Johnson completed her doctorate in solid state physicsin the research area of magnetic phase transitions at the University of Liverpool in 1985. She transitioned to working on glass materials after being approached by Pilkington Glass to solve technical problems. She was a Professor in Liverpool until 1995 when she joined Argonne National Laboratory in the United States, where she was introduced to solving the structure of amorphous materials using neutron scattering. After a 2-year period in administration she returned to research to develop a new mammography system using a glass-ceramic plate. In 2007, Dr. Johnson returned to academia at the University of Tennessee Space Institute and continues to synthesize and characterize glasses, glass ceramics and nanomaterials pertaining to medical devices, non-destructive evaluation and image enhancement.

For additional information:

Dr. Kathleen Richardson

Professor of Optics

TODAY: Distinguished Seminar Series: "Confining light on a chip: the science of optical micro-resonators" by Dr. Kerry Vahala 1.30.15/11:00am-12:00pm/ CREOL Rm 103

Distinguished Seminar Series: "Confining light on a chip: the science of optical micro-resonators" by Dr. Kerry Vahala

Friday, January 30, 2015 11:00 AM to 12:00 PM
CREOL Room 103

Celebrating the International Year of Light 2015                                            

Kerry Vahala

Jenkins Professor and Professor of Applied Physics

California Institute of Technology

Abstract:

Like a tuning fork for light, optical resonators have a characteristic set of frequencies at which it is possible to confine light waves. At these frequencies, optical energy can be efficiently stored for lengths of time characterized by the resonator Q factor, roughly the storage time in cycles of oscillation. In the last ten years there has been remarkable progress in boosting this storage time in micro and millimeter-scale optical resonators. Chip-based devices have attained Q factors of nearly 1 billion and micro-machined crystalline devices have provided Qs exceeding 100 billion. The resulting long, energy-storage times combined with small form factors have made it possible to access a wide range of nonlinear phenomena and to create laser devices that operate with remarkably low turn-on powers. Also, new science has resulted from radiation-pressure coupling of optical and mechanical degrees-of-freedom in the resonators themselves. I will review some of these results including parametric oscillators, optical frequency microcombs and microwave generation. The adaptation of resonator fabrication methods to optical delay lines as long as 27 meters on a silicon wafer will also be discussed.

Biography:

Professor Vahala received his BS, MS and Ph.D. degrees at Caltech. His research group has pioneered a class of optical resonators that hold the record for highest optical Q on a semiconductor chip.  They have applied these devices to study a wide range of nonlinear phenomena including the first demonstration of parametric oscillation in a micro cavity, now the basis for frequency micro combs. His research in this subject also led to the demonstration of dynamic backaction, a long-anticipated interaction of mechanics and optics mediated by radiation pressure that is responsible for opto-mechanical cooling and recent realizations of mechanical amplification by stimulated phonon emission.  Professor Vahala was involved in the early effort to develop quantum-well lasers for optical communications and received the IEEE Sarnoff Award for his research on quantum-well laser dynamics. He has also received an Alexander von Humboldt Award for his work on ultra-high-Q optical microcavities and is a fellow of the IEEE and the Optical Society of America. 

For additional information:

Dr. Bahaa E. A. Saleh

Dean & Director, Professor of Optics

TOMORROW! Distinguished Seminar Series: "Confining light on a chip: the science of optical micro-resonators" by Dr. Kerry Vahala 1.30.15/11:00am-12:00pm/ CREOL Rm 103

Distinguished Seminar Series: "Confining light on a chip: the science of optical micro-resonators" by Dr. Kerry Vahala

Friday, January 30, 2015 11:00 AM to 12:00 PM
CREOL Room 103

Celebrating the International Year of Light 2015    

                                    

Kerry Vahala

Jenkins Professor and Professor of Applied Physics

California Institute of Technology

Abstract:

Like a tuning fork for light, optical resonators have a characteristic set of frequencies at which it is possible to confine light waves. At these frequencies, optical energy can be efficiently stored for lengths of time characterized by the resonator Q factor, roughly the storage time in cycles of oscillation. In the last ten years there has been remarkable progress in boosting this storage time in micro and millimeter-scale optical resonators. Chip-based devices have attained Q factors of nearly 1 billion and micro-machined crystalline devices have provided Qs exceeding 100 billion. The resulting long, energy-storage times combined with small form factors have made it possible to access a wide range of nonlinear phenomena and to create laser devices that operate with remarkably low turn-on powers. Also, new science has resulted from radiation-pressure coupling of optical and mechanical degrees-of-freedom in the resonators themselves. I will review some of these results including parametric oscillators, optical frequency microcombs and microwave generation. The adaptation of resonator fabrication methods to optical delay lines as long as 27 meters on a silicon wafer will also be discussed.

Biography:

Professor Vahala received his BS, MS and Ph.D. degrees at Caltech. His research group has pioneered a class of optical resonators that hold the record for highest optical Q on a semiconductor chip.  They have applied these devices to study a wide range of nonlinear phenomena including the first demonstration of parametric oscillation in a micro cavity, now the basis for frequency micro combs. His research in this subject also led to the demonstration of dynamic backaction, a long-anticipated interaction of mechanics and optics mediated by radiation pressure that is responsible for opto-mechanical cooling and recent realizations of mechanical amplification by stimulated phonon emission.  Professor Vahala was involved in the early effort to develop quantum-well lasers for optical communications and received the IEEE Sarnoff Award for his research on quantum-well laser dynamics. He has also received an Alexander von Humboldt Award for his work on ultra-high-Q optical microcavities and is a fellow of the IEEE and the Optical Society of America. 

For additional information:

Dr. Bahaa E. A. Saleh

Dean & Director, Professor of Optics

TOMORROW! Seminar: Gamma-Ray Computed Radiography using a Fluorochlorozirconate Glass-Ceramic Storage Phosphor Plate by Dr. Jacqueline A. Johnson 1.30.15 9:30-10:30am/ CREOL RM 103

Seminar: Gamma-Ray Computed Radiography using a Fluorochlorozirconate Glass-Ceramic Storage Phosphor Plate by Dr. Jacqueline A. Johnson

Friday, January 30, 2015 9:30 AM to 10:30 AM
CREOL Room 103

Celebrating the International Year of Light 2015

Jacqueline A. Johnson

Department of Mechanical, Aerospace, and Biomedical Engineering,
University of Tennessee Space Institute

Abstract:

A fluorochlorozirconate (FCZ) glass-ceramic containing orthorhombic barium chloride crystals doped with divalent europium was evaluated for use as a storage phosphor in gamma-ray imaging. X-ray diffraction and phosphorimetry of the glass-ceramic sample showed the presence of a significant amount of orthorhombic barium chloride crystals in the glass matrix. Transmission electron microscopy and scanning electron microscopy were used to identify crystal size, structure, and morphology.  The size of the orthorhombic barium chloride crystals in the FCZ glass matrix was very large, ~0.5-0.7 μm, which can limit image resolution. The FCZ glass-ceramic sample was exposed to 1 MeV gamma rays to determine its photostimulated emission characteristics at high energies, which were found to be suitable for imaging applications.  Test images were made at 2 MeV energies using gap and step wedge phantoms. Gaps as small as 101.6 µm in a 440 stainless steel phantom were imaged using the sample imaging plate. Analysis of an image created using a depleted uranium step wedge phantom showed that emission is proportional to incident energy at the sample. The results showed that the sample imaging plate has potential for gamma-ray computed radiography and dosimetry applications.

Keywords: functional composites; glasses; ceramics; non-destructive testing.

Biography:

Dr. Johnson completed her doctorate in solid state physicsin the research area of magnetic phase transitions at the University of Liverpool in 1985. She transitioned to working on glass materials after being approached by Pilkington Glass to solve technical problems. She was a Professor in Liverpool until 1995 when she joined Argonne National Laboratory in the United States, where she was introduced to solving the structure of amorphous materials using neutron scattering. After a 2-year period in administration she returned to research to develop a new mammography system using a glass-ceramic plate. In 2007, Dr. Johnson returned to academia at the University of Tennessee Space Institute and continues to synthesize and characterize glasses, glass ceramics and nanomaterials pertaining to medical devices, non-destructive evaluation and image enhancement.

For additional information:

Dr. Kathleen Richardson

Professor of Optics

LPTH Press Release: LightPath Technologies Schedules Fiscal 2015 Second Quarter Conference Call

FOR IMMEDIATE RELEASE: LightPath Technologies Schedules Fiscal 2015 Second Quarter Conference Call Financial Results to be Announced on February 5th After Close of Market ORLANDO, FL – January 27, 2015 -- LightPath Technologies, Inc. (“LightPath”, the “Company” or “we”) (NASDAQ: LPTH), a leading vertically integrated global manufacturer, distributor and integrator of proprietary optical components and high-level assemblies, today announced the scheduling of a conference call and simultaneous webcast to discuss the Company’s financial and operational results for the fiscal 2015 second quarter ended December 31, 2014. Conference Call Details: Date: Thursday, February 5, 2015  Time: 4:30 PM (ET) Dial-in Number: 1-800-860-2442    International Dial-in Number: 1-412-858-4600   Webcast: http://services.choruscall.com/links/lpth150205.html Participants are recommended to dial-in or log-on approximately 10 minutes prior to the start of the event. A replay of the call will be available approximately one hour after completion through February 20, 2015. To listen to the replay, dial 1-877-344-7529 (domestic) or 1-412-317-0088 (international), and enter conference ID # 10059810. About LightPath Technologies LightPath Technologies, Inc. (NASDAQ: LPTH) provides optics and photonics solutions for the industrial, defense, telecommunications, testing and measurement, and medical industries. LightPath designs, manufactures, and distributes optical and infrared components including molded glass aspheric lenses and assemblies, infrared lenses and thermal imaging assemblies, fused fiber collimators, and gradient index GRADIUM® lenses. LightPath also offers custom optical assemblies, including full engineering design support.  For more information, visit www.lightpath.com. This news release includes statements that constitute forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including statements regarding our ability to expand our presence in certain markets, future sales growth, continuing reductions in cash usage and implementation of new distribution channels. This information may involve risks and uncertainties that could cause actual results to differ materially from such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, factors detailed by LightPath Technologies, Inc. in its public filings with the Securities and Exchange Commission. Except as required under the federal securities laws and the rules and regulations of the Securities and Exchange Commission, we do not have any intention or obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise. GRADIUM® is a registered trademark of LightPath Technologies. ###

LPTH Press Release: LightPath Technologies Closes $1.3 Million Private Placement with Pudong Science & Technology Investment

FOR IMMEDIATE RELEASE: LightPath Technologies Closes $1.3 Million Private Placement with Pudong Science & Technology Investment ORLANDO, FL – January 21, 2015 LightPath Technologies, Inc. (NASDAQ: LPTH) (“LightPath,” the “Company” or “we”), a leading vertically integrated global manufacturer, distributor and integrator of proprietary optical components and high-level assemblies, today announced the successful sale of securities pursuant to its previously announced Securities Purchase Agreement with Pudong Science & Technology (Cayman) Co., Ltd. (“Pudong”).  The Securities Purchase Agreement was amended (as amended, the “SPA”) and assigned by Pudong to an affiliate, Pudong Science & Technology Investment (Cayman) Co. Ltd. (“Pudong Investment”), on September 25, 2014.  Pursuant to the SPA, LightPath sold to Pudong Investment 930,790 shares of Class A Common Stock (the “Common Stock”).  The shares of Common Stock were sold at a price of $1.40 per share, per the terms of the SPA.  LightPath received gross proceeds of approximately $1,303,106 from the sale.  LightPath intends to use the proceeds of the sale to provide working capital in support of its continued growth, particularly new product development, sales and marketing of its infrared product line, and capital expenditures related to acquisition of new equipment.   Pudong Investment beneficially owned 14.9% of the Company’s outstanding shares of Common Stock immediately following the issuance of the shares of Common Stock.  Prior to the closing of the sale, Pudong Investment beneficially owned 9.37% of the Company’s outstanding shares of Common Stock, as disclosed in a Schedule 13G amendment filed with the Securities and Exchange Commission in 2014.  Jim Gaynor, President and Chief Executive Officer of LightPath, commented, “We are pleased to have closed the sale of the shares.  Pudong Investment has proven to be a long term supporter of LightPath and understands the magnitude of our future growth potential.  This investment by Pudong Investment will better position us to implement our strategic growth initiatives.” Dr. Xudong Zhu, Chairman of Shanghai Pudong Science and Technology Investment Co., Ltd., commented, “LightPath is a leading high-tech company in the optical molded lens industry and holds core technologies in products and solutions such as visible light aspheric lens, infrared aspheric lens, fiber collimator and gradient index lens.  We are delighted to increase our investment in  LightPath and hope we can help introduce LightPath’s commercial technologies and products to China’s market and resources through this investment, supporting the long-term growth of LightPath.  This investment further demonstrates our investment strategy to go global from China and our commitment to be a leading international institutional investor.” The shares sold have not been registered under the Securities Act of 1933, as amended, and may not be offered or sold in the United States absent registration or an applicable exemption from registration. LightPath granted Pudong Investment certain “piggyback” registration rights should it file with the Securities and Exchange Commission a registration statement to register its equity securities for its own account or the account of others under the Securities Act of 1933, as amended, at any time after the one-year anniversary of the closing date of the sale of the shares to Pudong Investment.  The shares are subject to a lock up period commencing on January 20, 2015 and ending on the next business day after the Company’s 2018 annual meeting.  This release does not constitute an offer to sell or the solicitation of an offer to buy any securities of LightPath.  The shares of Common Stock are being sold pursuant to an exemption from the registration requirements of the Securities Act of 1933, as amended, and applicable state securities laws. About Pudong Science & Technology Investment (Cayman) Co., Ltd. Pudong Investment is an investment vehicle wholly owned by Shanghai Pudong Science & Technology Investment Co., Ltd., which is a Shanghai-based investment management company with a leading professional management team, diversified business lines, strong financial position and rich strategic resources. For more information, visit www.pdsti.com. About LightPath Technologies: LightPath Technologies, Inc. (NASDAQ: LPTH) provides optics and photonics solutions for the industrial, defense, telecommunications, testing and measurement, and medical industries. LightPath designs, manufactures, and distributes optical and infrared components including molded glass aspheric lenses and assemblies, infrared lenses and thermal imaging assemblies, fused fiber collimators, and gradient index GRADIUM® lenses. LightPath also offers custom optical assemblies, including full engineering design support.  For more information, visit www.lightpath.com. This news release includes statements that constitute forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including statements regarding our ability to expand our presence in certain markets, future sales growth, continuing reductions in cash usage and implementation of new distribution channels. This information may involve risks and uncertainties that could cause actual results to differ materially from such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, factors detailed by LightPath Technologies, Inc. in its public filings with the Securities and Exchange Commission. Except as required under the federal securities laws and the rules and regulations of the Securities and Exchange Commission, we do not have any intention or obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise. ### Company Contact:     Jim Gaynor President & CEO         jgaynor@lightpath.com 407-382-4003 x377 Investor Contact: Jordan Darrow Darrow Associates, Inc. jdarrow@darrowir.com 631-367-1866

TOMORROW! NSTC/CREOL Distinguished Seminar Series: “Soft Optoelectronics: From Brain Interfaces to Fly’s Eye Cameras”- John Rogers 1.22.15/10:30-11:30am/ CREOL RM 102/103

NSTC/CREOL Distinguished Seminar Series: “Soft Optoelectronics: From Brain Interfaces to Fly’s Eye Cameras”- John Rogers

Thursday, January 22, 2015 10:30 AM to 11:30 AM
CREOL 102/103

Celebrating the International Year of Light 2015

Abstract:

Recent advances in materials science and mechanical engineering enable construction of high performance optical, electronic and mechanical microsystems that can flex, bend, fold and stretch, with ability to accommodate large (>>1%) strain deformation with a purely elastic mechanical response.  Such technologies open up new engineering opportunities in bio-inspired device design and in intimate, multifunctional interfaces to the human body. This talk summarizes fundamental and applied aspects of two recent examples: (1) hemispherical digital imagers that incorporate essential design features found in the arthropod eye and (2) injectable, cellular-scale light emitting diodes for wireless control of complex behaviors in animal models, via the techniques of optogenetics.

Biography:

 Professor John A. Rogers obtained BA and BS degrees in chemistry and in physics from the University of Texas, Austin, in 1989.  From MIT, he received SM degrees in physics and in chemistry in 1992 and the PhD degree in physical chemistry in 1995.  From 1995 to 1997, Rogers was a Junior Fellow in the Harvard University Society of Fellows.  He joined Bell Laboratories as a Member of Technical Staff in the Condensed Matter Physics Research Department in 1997, and served as Director of this department from the end of 2000 to 2002.  He is currently Swanlund Chair Professor at University of Illinois at Urbana/Champaign, with a primary appointment in the Department of Materials Science and Engineering.  He is also Director of the Seitz Materials Research Laboratory. Rogers’ research includes fundamental and applied aspects of materials and patterning techniques for unusual electronic and photonic devices, with an emphasis on bio-integrated and bio-inspired systems.  He has published more than 450 papers and is inventor on over 80 patents, more than 50 of which are licensed or in active use.  Rogers is a Fellow of the IEEE, APS, MRS and AAAS, and he is a member of the National Academy of Engineering and the American Academy of Arts and Sciences.  His research has been recognized with many awards, including a MacArthur Fellowship in 2009, the Lemelson-MIT Prize in 2011 and, in 2013, the MRS Mid-Career Researcher Award, the ASME Robert Henry Thurston Award and the Smithsonian Award for American Ingenuity in the Physical Sciences.  In 2013 he also received an Honoris Causa Doctorate from the École Polytechnique Fédérale de Lausanne. 

For additional information:

Debashis Chanda

Seminar: Gamma-Ray Computed Radiography using a Fluorochlorozirconate Glass-Ceramic Storage Phosphor Plate by Dr. Jacqueline A. Johnson 1.30.15/ 9:30-10:30am/ CREOL Rm 103

Seminar: Gamma-Ray Computed Radiography using a Fluorochlorozirconate Glass-Ceramic Storage Phosphor Plate by Dr. Jacqueline A. Johnson

Friday, January 30, 2015 9:30 AM to 10:30 AM
CREOL Room 103

Jacqueline A. Johnson

Department of Mechanical, Aerospace, and Biomedical Engineering

University of Tennessee Space Institute

Celebrating the International Year of Light 2015

Abstract:

A fluorochlorozirconate (FCZ) glass-ceramic containing orthorhombic barium chloride crystals doped with divalent europium was evaluated for use as a storage phosphor in gamma-ray imaging. X-ray diffraction and phosphorimetry of the glass-ceramic sample showed the presence of a significant amount of orthorhombic barium chloride crystals in the glass matrix. Transmission electron microscopy and scanning electron microscopy were used to identify crystal size, structure, and morphology.  The size of the orthorhombic barium chloride crystals in the FCZ glass matrix was very large, ~0.5-0.7 μm, which can limit image resolution. The FCZ glass-ceramic sample was exposed to 1 MeV gamma rays to determine its photostimulated emission characteristics at high energies, which were found to be suitable for imaging applications.  Test images were made at 2 MeV energies using gap and step wedge phantoms. Gaps as small as 101.6 µm in a 440 stainless steel phantom were imaged using the sample imaging plate. Analysis of an image created using a depleted uranium step wedge phantom showed that emission is proportional to incident energy at the sample. The results showed that the sample imaging plate has potential for gamma-ray computed radiography and dosimetry applications.

Keywords: functional composites; glasses; ceramics; non-destructive testing.

Biography:

Dr. Johnson completed her doctorate in solid state physicsin the research area of magnetic phase transitions at the University of Liverpool in 1985. She transitioned to working on glass materials after being approached by Pilkington Glass to solve technical problems. She was a Professor in Liverpool until 1995 when she joined Argonne National Laboratory in the United States, where she was introduced to solving the structure of amorphous materials using neutron scattering. After a 2-year period in administration she returned to research to develop a new mammography system using a glass-ceramic plate. In 2007, Dr. Johnson returned to academia at the University of Tennessee Space Institute and continues to synthesize and characterize glasses, glass ceramics and nanomaterials pertaining to medical devices, non-destructive evaluation and image enhancement.

For additional information:

Dr. Kathleen Richardson

Professor of Optics

LPTH Press Release: LightPath Technologies Exhibiting

FOR IMMEDIATE RELEASE: LightPath Technologies Exhibiting at SPIE Photonics West 2015 LightPath to Show New Products to an Expected 20,000 Attendees and 1,300 Vendors ORLANDO, FL - (January 15, 2015) - LightPath Technologies, Inc. (NASDAQ: LPTH) (“LightPath”, the “Company” or “we”), a global manufacturer, distributor and integrator of proprietary optical components, infrared lenses and high-level assemblies, today announced it will exhibit at the SPIE Photonics West 2015 Exhibition.  The show will take place on February 10-12, 2015 at the Moscone Center in San Francisco, CA.  LightPath will occupy Booth #2211 located within conference center.  To learn more about the Advanced Manufacturing Capabilities currently offered, an open invitation is extended to all attending the show.  Some of the highlighted products to be displayed include: • Advanced Glass Molding • Acylindrical Lenses • Aspheric Mirrors • Insert Molding • Lens Edging, Dicing, and Edge Blackening • Thermal Imaging Lens Assemblies Representing LightPath Technologies will be Jim Gaynor, the Company’s CEO, who commented, “We look forward to the opportunity to demonstrate our advanced manufacturing capabilities and custom options to OEMs, partners, and prospects while continuing to increase the market’s awareness and acceptance of our optics and photonics solutions.” SPIE Photonics West is the #1 laser, photonics, and biomedical optics conference. With a projected 20,000 attendees, two exhibitions and 1,250 exhibiting companies. About LightPath Technologies LightPath provides optics and photonics solutions for the industrial, defense, telecommunications, testing and measurement, and medical industries. LightPath designs, manufactures, and distributes optical and infrared components including molded glass aspheric lenses and assemblies, infrared lenses and thermal imaging assemblies, fused fiber collimators, and gradient index GRADIUM® lenses. LightPath also offers custom optical assemblies, including full engineering design support.  For more information, visit www.lightpath.com. This news release includes statements that constitute forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including statements regarding our ability to expand our presence in certain markets, future sales growth, continuing reductions in cash usage and implementation of new distribution channels. This information may involve risks and uncertainties that could cause actual results to differ materially from such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, factors detailed by LightPath Technologies, Inc. in its public filings with the Securities and Exchange Commission. Except as required under the federal securities laws and the rules and regulations of the Securities and Exchange Commission, we do not have any intention or obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise. ###

TODAY!! Seminar: "Modeling of ultrashort pulse laser-matter interactions" by J. P. Palastro 1.13.15/ 1:30-2:30pm/ CREOL RM 103

Seminar: "Modeling of ultrashort pulse laser-matter interactions" by J. P. Palastro

Tuesday, January 13, 2015 1:30 PM to 2:30 PM
CREOL Room 103

Celebrating the International Year of Light 2015

J. P. Palastro

Icarus Research, Naval Research Laboratory Contractor

Washington, DC 20375

Abstract:

An intense femtosecond laser pulse propagating through matter induces a dynamic, nonlinear dielectric response. Through the dielectric response, the matter modifies propagation of the pulse. This feedback—the laser matter interaction—results in a number of fascinating phenomena: collimated pulse propagation over 100’s of meters in atmosphere, the formation of plasma wakefields, pulse compression and amplification, induced birefringence, and frequency conversion. Consequently, these pulses are of potential interest to the DoD for applications including, light detection and ranging (LIDAR), laser induced breakdown spectroscopy (LIBS), directed energy beacon beams, remote radiation generation, and lightning initiation. Here I will discuss a variety of topics in ultrashort pulse laser-matter interactions from a theoretical and computational standpoint. Primarily, I will demonstrate that the multi-pulse excitation of molecular rotations in atmosphere can provide an effective travelling lens that can collimate and compress laser pulses. Additional topics such as nonlinear birefringence and turbulence in atmosphere, laser-material interactions, plasma-based particle acceleration, and mid-infrared and x-ray generation in plasmas will be discussed briefly.

  

Biography:

Dr. John Patrick Palastro is a theoretical and computational physicist. His primary focus is in applied electromagnetics with emphasis on nonlinear laser pulse propagation in a variety of media, plasma physics, advanced accelerators, and radiation generation. John received his B.S. degree, Summa Cum Laude, in Applied Mathematics in 2002 from Clemson University and his Ph.D. in Physics from the University of Maryland College Park in 2007. The title of his thesis was “Interaction of Lasers with Atomic Clusters and Structured Plasmas”. He served as a Postdoctoral Fellow at Lawrence Livermore National Laboratory from 2007 until 2009 where he investigated nonlinear laser plasma processes relevant to inertial confinement fusion. From 2009-2014, John was a research scientist in the Institute for Research in Electronic and Applied Physics at the University of Maryland where his primary focus was the propagation of high power lasers through atmosphere. He then joined the Naval Research Laboratory as a contractor in 2014 where he began investigating laser-material interactions and laser-plasma based X-ray sources.

For additional information:

Dr. Martin C. Richardson

Pegasus Professor and University Trustee Chair, Northrop G

TOMORROW! Seminar: "Modeling of ultrashort pulse laser-matter interactions" by J. P. Palastro 1.13.15/ 1:30-2:30pm/ CREOL RM 103

Seminar: "Modeling of ultrashort pulse laser-matter interactions" by J. P. Palastro

Tuesday, January 13, 2015 1:30 PM to 2:30 PM
CREOL Room 103

Celebrating the International Year of Light 2015

J. P. Palastro

Icarus Research, Naval Research Laboratory Contractor

Washington, DC 20375

Abstract:

An intense femtosecond laser pulse propagating through matter induces a dynamic, nonlinear dielectric response. Through the dielectric response, the matter modifies propagation of the pulse. This feedback—the laser matter interaction—results in a number of fascinating phenomena: collimated pulse propagation over 100’s of meters in atmosphere, the formation of plasma wakefields, pulse compression and amplification, induced birefringence, and frequency conversion. Consequently, these pulses are of potential interest to the DoD for applications including, light detection and ranging (LIDAR), laser induced breakdown spectroscopy (LIBS), directed energy beacon beams, remote radiation generation, and lightning initiation. Here I will discuss a variety of topics in ultrashort pulse laser-matter interactions from a theoretical and computational standpoint. Primarily, I will demonstrate that the multi-pulse excitation of molecular rotations in atmosphere can provide an effective travelling lens that can collimate and compress laser pulses. Additional topics such as nonlinear birefringence and turbulence in atmosphere, laser-material interactions, plasma-based particle acceleration, and mid-infrared and x-ray generation in plasmas will be discussed briefly.

  

Biography:

Dr. John Patrick Palastro is a theoretical and computational physicist. His primary focus is in applied electromagnetics with emphasis on nonlinear laser pulse propagation in a variety of media, plasma physics, advanced accelerators, and radiation generation. John received his B.S. degree, Summa Cum Laude, in Applied Mathematics in 2002 from Clemson University and his Ph.D. in Physics from the University of Maryland College Park in 2007. The title of his thesis was “Interaction of Lasers with Atomic Clusters and Structured Plasmas”. He served as a Postdoctoral Fellow at Lawrence Livermore National Laboratory from 2007 until 2009 where he investigated nonlinear laser plasma processes relevant to inertial confinement fusion. From 2009-2014, John was a research scientist in the Institute for Research in Electronic and Applied Physics at the University of Maryland where his primary focus was the propagation of high power lasers through atmosphere. He then joined the Naval Research Laboratory as a contractor in 2014 where he began investigating laser-material interactions and laser-plasma based X-ray sources.

For additional information:

Dr. Martin C. Richardson

Pegasus Professor and University Trustee Chair, Northrop G

TODAY! Seminar: "Activities in the Fiber Sensors & Supercontinuum Group at DTU Fotonik" by Dr. Ole Bang 1.12.15/ 11:00am-12:00pm/ CREOL Rm 103

Seminar: "Activities in the Fiber Sensors & Supercontinuum Group at DTU Fotonik" by Dr. Ole Bang

Monday, January 12, 2015 11:00 AM to 12:00 PM
CREOL Room 103

Celebrating the International Year of Light 2015

Abstract:   

The Fiber Sensors & Supercontinuum group at DTU Fotonik, the Technical University of Denmark (DTU), have two main activities in (I) supercontinuum theory, modelling, and experiments, both in silica and soft glass fibers for SC from 350nm to the mid-IR out to 13.3um, and in (II) microstructured polymer optical fibers (mPOFs), in particular for strain, humidity, and biosensing, where we have been fabricating our own fibers since 2004 on Denmark's only university-based draw tower and are about to spin-off the sensor company SHUTE. In this talk I would like to give you an overview of all our current and most recent activities. Surprising physics is still to be found in supercontinuum generation when you go to high average power!

Biography:

Professor Ole Bang is Heading the Fiber Sensors & Supercontinuum Group at DTU Fotonik, Dept. of Photonics Engineering, the Technical University of Denmark (DTU), with about 16 people. He has worked in academic research since 1991 and supervised 31 PhD students. He has published 165 journal papers, 156 of which are in ISI with a total of 5104 ISI citations and an ISI h-index of 40 (seewww.researcherid.com/rid/E-6158-2010 and www.scholar.google.com/citations?user=XfNI3_YAAAAJ). He has published 1 book, 5 book chapters, 2 patents, and 200+ conference papers. He serves on the Program Committee at conferences, such as the Optical Fiber Sensor Conference (2011-14), ECOC, SPIE Defence, CLEO Europe/US, and Photonics Europe, and is a Topical Editor for Optics Letters and Journal of Optics.  His group operates Denmark’s only university-based draw tower for drawing microstructured optical fibers (MOFs) and have considerable experience in polymer MOF technology, as well as in fiber based supercontinuum light source technology.

For additional information: 

Dr. Ayman Abouraddy

Associate Professor of Optics

MONDAY! Seminar: "Activities in the Fiber Sensors & Supercontinuum Group at DTU Fotonik" by Dr. Ole Bang 1.12.15/ 11:00am-12:00pm/ CREOL Rm 103

Seminar: "Activities in the Fiber Sensors & Supercontinuum Group at DTU Fotonik" by Dr. Ole Bang
Monday, January 12, 2015 11:00 AM to 12:00 PM
CREOL Room 103

Celebrating the International Year of Light 2015

Abstract:  
The Fiber Sensors & Supercontinuum group at DTU Fotonik, the Technical University of Denmark (DTU), have two main activities in (I) supercontinuum theory, modelling, and experiments, both in silica and soft glass fibers for SC from 350nm to the mid-IR out to 13.3um, and in (II) microstructured polymer optical fibers (mPOFs), in particular for strain, humidity, and biosensing, where we have been fabricating our own fibers since 2004 on Denmark's only university-based draw tower and are about to spin-off the sensor company SHUTE. In this talk I would like to give you an overview of all our current and most recent activities. Surprising physics is still to be found in supercontinuum generation when you go to high average power!

Biography:
Professor Ole Bang is Heading the Fiber Sensors & Supercontinuum Group at DTU Fotonik, Dept. of Photonics Engineering, the Technical University of Denmark (DTU), with about 16 people. He has worked in academic research since 1991 and supervised 31 PhD students. He has published 165 journal papers, 156 of which are in ISI with a total of 5104 ISI citations and an ISI h-index of 40 (seewww.researcherid.com/rid/E-6158-2010 and www.scholar.google.com/citations?user=XfNI3_YAAAAJ). He has published 1 book, 5 book chapters, 2 patents, and 200+ conference papers. He serves on the Program Committee at conferences, such as the Optical Fiber Sensor Conference (2011-14), ECOC, SPIE Defence, CLEO Europe/US, and Photonics Europe, and is a Topical Editor for Optics Letters and Journal of Optics.  His group operates Denmark’s only university-based draw tower for drawing microstructured optical fibers (MOFs) and have considerable experience in polymer MOF technology, as well as in fiber based supercontinuum light source technology.

For additional information:
Dr. Ayman Abouraddy
Associate Professor of Optics

NSTC/CREOL Distinguished Seminar Series: “Soft Optoelectronics: From Brain Interfaces to Fly’s Eye Cameras”- John Rogers 1.22.15/10:30am-11:30am/ Location CREOL 102/103

NSTC/CREOL Distinguished Seminar Series: “Soft Optoelectronics: From Brain Interfaces to Fly’s Eye Cameras”- John Rogers

Thursday, January 22, 2015 10:30 AM to 11:30 AM

Room CREOL 102 and 103

Celebrating the International Year of Light 2015

Abstract:

Recent advances in materials science and mechanical engineering enable construction of high performance optical, electronic and mechanical microsystems that can flex, bend, fold and stretch, with ability to accommodate large (>>1%) strain deformation with a purely elastic mechanical response.  Such technologies open up new engineering opportunities in bio-inspired device design and in intimate, multifunctional interfaces to the human body. This talk summarizes fundamental and applied aspects of two recent examples: (1) hemispherical digital imagers that incorporate essential design features found in the arthropod eye and (2) injectable, cellular-scale light emitting diodes for wireless control of complex behaviors in animal models, via the techniques of optogenetics.

Biography:

 Professor John A. Rogers obtained BA and BS degrees in chemistry and in physics from the University of Texas, Austin, in 1989.  From MIT, he received SM degrees in physics and in chemistry in 1992 and the PhD degree in physical chemistry in 1995.  From 1995 to 1997, Rogers was a Junior Fellow in the Harvard University Society of Fellows.  He joined Bell Laboratories as a Member of Technical Staff in the Condensed Matter Physics Research Department in 1997, and served as Director of this department from the end of 2000 to 2002.  He is currently Swanlund Chair Professor at University of Illinois at Urbana/Champaign, with a primary appointment in the Department of Materials Science and Engineering.  He is also Director of the Seitz Materials Research Laboratory. Rogers’ research includes fundamental and applied aspects of materials and patterning techniques for unusual electronic and photonic devices, with an emphasis on bio-integrated and bio-inspired systems.  He has published more than 450 papers and is inventor on over 80 patents, more than 50 of which are licensed or in active use.  Rogers is a Fellow of the IEEE, APS, MRS and AAAS, and he is a member of the National Academy of Engineering and the American Academy of Arts and Sciences.  His research has been recognized with many awards, including a MacArthur Fellowship in 2009, the Lemelson-MIT Prize in 2011 and, in 2013, the MRS Mid-Career Researcher Award, the ASME Robert Henry Thurston Award and the Smithsonian Award for American Ingenuity in the Physical Sciences.  In 2013 he also received an Honoris Causa Doctorate from the École Polytechnique Fédérale de Lausanne. 

For additional information:

Debashis Chanda

Seminar: "Activities in the Fiber Sensors & Supercontinuum Group at DTU Fotonik" by Dr. Ole Bang 1.12.15/11:00am-12:00pm/ CREOL RM 103

Seminar: "Activities in the Fiber Sensors & Supercontinuum Group at DTU Fotonik" by Dr. Ole Bang

Monday, January 12, 2015 11:00 AM to 12:00 PM
CREOL Room 103

Celebrating the International Year of Light 2015

Abstract:   

The Fiber Sensors & Supercontinuum group at DTU Fotonik, the Technical University of Denmark (DTU), have two main activities in (I) supercontinuum theory, modelling, and experiments, both in silica and soft glass fibers for SC from 350nm to the mid-IR out to 13.3um, and in (II) microstructured polymer optical fibers (mPOFs), in particular for strain, humidity, and biosensing, where we have been fabricating our own fibers since 2004 on Denmark's only university-based draw tower and are about to spin-off the sensor company SHUTE. In this talk I would like to give you an overview of all our current and most recent activities. Surprising physics is still to be found in supercontinuum generation when you go to high average power!

Biography:

Professor Ole Bang is Heading the Fiber Sensors & Supercontinuum Group at DTU Fotonik, Dept. of Photonics Engineering, the Technical University of Denmark (DTU), with about 16 people. He has worked in academic research since 1991 and supervised 31 PhD students. He has published 165 journal papers, 156 of which are in ISI with a total of 5104 ISI citations and an ISI h-index of 40 (see www.researcherid.com/rid/E-6158-2010 and www.scholar.google.com/citations?user=XfNI3_YAAAAJ). He has published 1 book, 5 book chapters, 2 patents, and 200+ conference papers. He serves on the Program Committee at conferences, such as the Optical Fiber Sensor Conference (2011-14), ECOC, SPIE Defence, CLEO Europe/US, and Photonics Europe, and is a Topical Editor for Optics Letters and Journal of Optics.  His group operates Denmark’s only university-based draw tower for drawing microstructured optical fibers (MOFs) and have considerable experience in polymer MOF technology, as well as in fiber based supercontinuum light source technology.

For additional information: 

Dr. Ayman Abouraddy

Associate Professor of Optics

Seminar: "Modeling of ultrashort pulse laser-matter interactions" by J. P. Palastro 1.13.15/1:30pm-2:30pm/ CREOL Rm 103

Seminar: "Modeling of ultrashort pulse laser-matter interactions" by J. P. Palastro

Tuesday, January 13, 2015 1:30 PM to 2:30 PM
CREOL Room 103

Celebrating the International Year of Light 2015

J. P. Palastro

Icarus Research, Naval Research Laboratory Contractor

Washington, DC 20375

Abstract:

An intense femtosecond laser pulse propagating through matter induces a dynamic, nonlinear dielectric response. Through the dielectric response, the matter modifies propagation of the pulse. This feedback—the laser matter interaction—results in a number of fascinating phenomena: collimated pulse propagation over 100’s of meters in atmosphere, the formation of plasma wakefields, pulse compression and amplification, induced birefringence, and frequency conversion. Consequently, these pulses are of potential interest to the DoD for applications including, light detection and ranging (LIDAR), laser induced breakdown spectroscopy (LIBS), directed energy beacon beams, remote radiation generation, and lightning initiation. Here I will discuss a variety of topics in ultrashort pulse laser-matter interactions from a theoretical and computational standpoint. Primarily, I will demonstrate that the multi-pulse excitation of molecular rotations in atmosphere can provide an effective travelling lens that can collimate and compress laser pulses. Additional topics such as nonlinear birefringence and turbulence in atmosphere, laser-material interactions, plasma-based particle acceleration, and mid-infrared and x-ray generation in plasmas will be discussed briefly.  

Biography:

Dr. John Patrick Palastro is a theoretical and computational physicist. His primary focus is in applied electromagnetics with emphasis on nonlinear laser pulse propagation in a variety of media, plasma physics, advanced accelerators, and radiation generation. John received his B.S. degree, Summa Cum Laude, in Applied Mathematics in 2002 from Clemson University and his Ph.D. in Physics from the University of Maryland College Park in 2007. The title of his thesis was “Interaction of Lasers with Atomic Clusters and Structured Plasmas”. He served as a Postdoctoral Fellow at Lawrence Livermore National Laboratory from 2007 until 2009 where he investigated nonlinear laser plasma processes relevant to inertial confinement fusion. From 2009-2014, John was a research scientist in the Institute for Research in Electronic and Applied Physics at the University of Maryland where his primary focus was the propagation of high power lasers through atmosphere. He then joined the Naval Research Laboratory as a contractor in 2014 where he began investigating laser-material interactions and laser-plasma based X-ray sources.

For additional information:

Dr. Martin C. Richardson

Pegasus Professor and University Trustee Chair, Northrop G

NSTC/CREOL Distinguished Seminar Series: “Soft Optoelectronics: From Brain Interfaces to Fly’s Eye Cameras”- John Rogers 1.22.15/11:00am-12:00pm/ Location TBD

NSTC/CREOL Distinguished Seminar Series: “Soft Optoelectronics: From Brain Interfaces to Fly’s Eye Cameras”- John Rogers

Thursday, January 22, 2015 11:00 AM to 12:00 PM
Room TBD

Celebrating the International Year of Light 2015

Abstract:

Recent advances in materials science and mechanical engineering enable construction of high performance optical, electronic and mechanical microsystems that can flex, bend, fold and stretch, with ability to accommodate large (>>1%) strain deformation with a purely elastic mechanical response.  Such technologies open up new engineering opportunities in bio-inspired device design and in intimate, multifunctional interfaces to the human body. This talk summarizes fundamental and applied aspects of two recent examples: (1) hemispherical digital imagers that incorporate essential design features found in the arthropod eye and (2) injectable, cellular-scale light emitting diodes for wireless control of complex behaviors in animal models, via the techniques of optogenetics.

Biography:

 Professor John A. Rogers obtained BA and BS degrees in chemistry and in physics from the University of Texas, Austin, in 1989.  From MIT, he received SM degrees in physics and in chemistry in 1992 and the PhD degree in physical chemistry in 1995.  From 1995 to 1997, Rogers was a Junior Fellow in the Harvard University Society of Fellows.  He joined Bell Laboratories as a Member of Technical Staff in the Condensed Matter Physics Research Department in 1997, and served as Director of this department from the end of 2000 to 2002.  He is currently Swanlund Chair Professor at University of Illinois at Urbana/Champaign, with a primary appointment in the Department of Materials Science and Engineering.  He is also Director of the Seitz Materials Research Laboratory. Rogers’ research includes fundamental and applied aspects of materials and patterning techniques for unusual electronic and photonic devices, with an emphasis on bio-integrated and bio-inspired systems.  He has published more than 450 papers and is inventor on over 80 patents, more than 50 of which are licensed or in active use.  Rogers is a Fellow of the IEEE, APS, MRS and AAAS, and he is a member of the National Academy of Engineering and the American Academy of Arts and Sciences.  His research has been recognized with many awards, including a MacArthur Fellowship in 2009, the Lemelson-MIT Prize in 2011 and, in 2013, the MRS Mid-Career Researcher Award, the ASME Robert Henry Thurston Award and the Smithsonian Award for American Ingenuity in the Physical Sciences.  In 2013 he also received an Honoris Causa Doctorate from the École Polytechnique Fédérale de Lausanne. 

For additional information:

Debashis Chanda

Distinguished Seminar Series: "Confining light on a chip: the science of optical micro-resonators" by Dr. Kerry Vahala 1.30.15/11:00am-12:00pm/ CREOL Rm 103

Distinguished Seminar Series: "Confining light on a chip: the science of optical micro-resonators" by Dr. Kerry Vahala

Friday, January 30, 2015 11:00 AM to 12:00 PM
CREOL Room 103

Celebrating the International Year of Light 2015                                            

Kerry Vahala

Jenkins Professor and Professor of Applied Physics

California Institute of Technology

Abstract:

Like a tuning fork for light, optical resonators have a characteristic set of frequencies at which it is possible to confine light waves. At these frequencies, optical energy can be efficiently stored for lengths of time characterized by the resonator Q factor, roughly the storage time in cycles of oscillation. In the last ten years there has been remarkable progress in boosting this storage time in micro and millimeter-scale optical resonators. Chip-based devices have attained Q factors of nearly 1 billion and micro-machined crystalline devices have provided Qs exceeding 100 billion. The resulting long, energy-storage times combined with small form factors have made it possible to access a wide range of nonlinear phenomena and to create laser devices that operate with remarkably low turn-on powers. Also, new science has resulted from radiation-pressure coupling of optical and mechanical degrees-of-freedom in the resonators themselves. I will review some of these results including parametric oscillators, optical frequency microcombs and microwave generation. The adaptation of resonator fabrication methods to optical delay lines as long as 27 meters on a silicon wafer will also be discussed.

Biography:

Professor Vahala received his BS, MS and Ph.D. degrees at Caltech. His research group has pioneered a class of optical resonators that hold the record for highest optical Q on a semiconductor chip.  They have applied these devices to study a wide range of nonlinear phenomena including the first demonstration of parametric oscillation in a micro cavity, now the basis for frequency micro combs. His research in this subject also led to the demonstration of dynamic backaction, a long-anticipated interaction of mechanics and optics mediated by radiation pressure that is responsible for opto-mechanical cooling and recent realizations of mechanical amplification by stimulated phonon emission.  Professor Vahala was involved in the early effort to develop quantum-well lasers for optical communications and received the IEEE Sarnoff Award for his research on quantum-well laser dynamics. He has also received an Alexander von Humboldt Award for his work on ultra-high-Q optical microcavities and is a fellow of the IEEE and the Optical Society of America. 

For additional information:

Dr. Bahaa E. A. Saleh

Dean & Director, Professor of Optics