Seminar: "Energy Efficiency Transceiver for On Board Optical Communications" By Dr. Kambiz Jamshidi, 7.05.16/12:00PM-1:00PM/CREOL RM 103

Seminar: "Energy Efficiency Transceiver for On Board Optical Communications" By Dr. Kambiz Jamshidi

Tuesday, July 5, 2016 12:00 PM to 1:00 PM
CREOL Room 103

Dr. Kambiz JamshidiTechnische Universität Dresden

Abstract:

Energy consumption and ecological impact of ICT section is growing rapidly. Communication networks, computers and data centers share this energy consumption. In order to address this issue, various solutions have been pursued in hardware, architecture, and software levels so far. In Dresden, a collaborative project, funded by German Research Foundation, named Highly Adaptive Energy-efficient Computing (HAEC) has been started to research towards technologies which enable computing systems with high energy efficiency without compromising on high performance. In this talk, initially a brief overview about the ongoing activities of integrated photonic devices group in TU Dresden will be presented. After that, the reverse biased modulator, to be used for on-board optical communications in HAEC, will be discussed using a system model approach. Tradeoffs of various modulator designs (slow light as well as ring structures) in terms of bandwidth, optical energy efficiency, and electrical energy efficiency will be described.

Biography:

Kambiz Jamshidi received his Ph.D. degree in Electrical Engineering from Sharif University of Technology (SUT), Tehran, Iran in 2006. In 2009 he moved to Germany and worked as a postdoc in Leipzig and TU Berlin. He is working as an assistant Professor in Communications Laboratory of TU Dresden in the field of integrated photonic devices since March 2013.

For additional information:

Dr. Sasan Fathpour

LPTH Press Release: LightPath Joins Nanomaterial Innovation Limited As Key Industrial Partner On National Science Foundation Phase II SBIR Program

For Immediate Release: LightPath Joins Nanomaterial Innovation Limited As Key Industrial Partner On National Science Foundation Phase II SBIR Program     ORLANDO, FL - (June 29, 2016) - LightPath Technologies, Inc. (NASDAQ: LPTH) (“LightPath”, the “Company” or “we”), a leading vertically integrated global manufacturer,distributor and integrator of proprietary optical and infrared components and high-level assemblies, today announced it has won a $200,000 sub-award from the National Science Foundation for a Phase II Small Business Innovation Research titled “Carbide bonded graphene coating for enhanced glass molding.”  LightPath is part of the research team led by the primary grantee of Nanomaterial Innovation Limited (NIL), a spin-off from The Ohio State University.     Graphene has emerged as one of the most intriguing materials for optical applications in recent years due to its natural properties possessing the highest strength and thermal conductivity known to man. Despite these outstanding properties, commercial applications are limited by the difficulty of scaling up graphene fabrication. However, a novel graphene-containing film deposition method developed at The Ohio State University/NIL could help to overcome this challenge and allow graphene to be utilized in a wide variety of applications including precision glass molding.     During Phase I, NIL showed that when used for mold release this graphene coating provided potential advantages for molding both visible and infrared glasses. As a recognized worldwide leader in the handling, production and commercialization of precision optical technologies, LightPath was invited to participate in the research program.  Now in Phase II, LightPath joins NIL as an industrial partner and will use its experience in molding optics to apply this coating to a production environment.     Anticipated benefits include enhanced mold lifetimes, improved molding yields, and, therefore, reduced costs for both visible and infrared optics. The work will focus on molding both singlet lenses as well as multi-cavity optics.  These optical components may be critical as an enabling factor for driving enhanced functionality and lower cost for end products used in military, public safety, medical, industrial, automotive markets. About National Science Foundation (SBIR program): The NSF Small Business Innovation Research / Small Business Technology Transfer (SBIR/STTR) program seeks to transform scientific discovery into societal and economic benefit by catalyzing private sector commercialization of technological innovations. The program increases the incentive and opportunity for startups and small businesses to undertake cutting-edge, high-quality scientific research and development. 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, visitwww.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. ####

Recent progress on high-energy ultrafast laser systems in RIKEN

Seminar Yuxi FU- in PSB 160/161 @ 1:30 pm Monday June 13

Recent progress on high-energy ultrafast laser systems in RIKEN

Yuxi FU

RIKEN Center for Advanced Photonics, Japan

In this seminar, two of our recent work will be presented. The first one is developing high-energy infrared fs laser using a dual-chirped optical parametric amplification (DC-OPA) scheme. In the DC-OPA scheme, a high-energy fs laser pulse is temporally stretched by introducing an amount of temporal chirp and is used as a pump for an OPA system. In this way, the pump energy can be scaled up without damaging nonlinear crystals. Simultaneously, the seed pulse of the OPA is also temporally broadened to achieve good conversion efficiency. Because both of the pump and seed pulses are temporally chirped, the method is dubbed as dual-chirped OPA. In this novel method, it is important not only to optimize the chirp value but also to use the same chirp sign. By using the DC-OPA method, we successfully demonstrated its excellent energy scaling ability and obtained more than 100 mJ output (signal + idler) energy. To the best of our knowledge, this is the first time for an ultrafast infrared laser to reach the 100 mJ class. Such a high-energy infrared fs laser is very useful for energy scaling of sub-keV high harmonics generation and intense isolated attosecond pulse generation by infrared two color gating (IR-TCG) method.

The other one is carrier-envelope phase (CEP) stabilization of a high-energy, low-repetition rate laser. A high-repetition rate reference pulse, which copropagates with the high-energy pulse though the power amplifier and compressor, is employed to characterize and stabilize its CEP. CEPs of the high-energy pulses are indirectly stabilized to below 600 mrad RMS level under an out-of-loop measurement (single-shot). What’s more, we experimentally investigated CEP stabilization affected by energy fluctuation, sampling/feedback frequency and thermal effect. The method can be employed to stabilize CEPs of 100-TW or even PW class lasers.

LPTH Press Release: LightPath Technologies Launches Updated Global Website

For Immediate Release: LightPath Technologies Launches Updated Global Website ORLANDO, FL - (June 9, 2016) - LightPath Technologies, Inc. (NASDAQ: LPTH) (“LightPath”, the “Company” or “we”), a leading vertically integratedglobal manufacturer, distributor and integrator of proprietary optical and infrared components and high-level assemblies, today announced the successful launching of its redesigned corporate website. The site is intended to be user friendly, quick loading, and fully functional when viewed with any modern browser. In keeping with best practices for web convenience, the innovative configuration adapts to all current platforms including desktops, laptops, tablets, and smartphones. The refreshed site also includes a convenient lens finder for Aspheres in the visible and infrared spectrums allowing the visitor the ability to identify a lens to fit their needs or request a custom design.   “Our goal continues to be providing a positive user experience for current and potential clients, while detailing our entire range of optics and photonics solutions” Jim Gaynor, President/CEO said. He continued, "LightPath has had a long-standing commitment to utilizing best practices in our work. The state-of-the-art site provides us with the ability to extend that commitment to our online presence globally." To review the enhancements, LightPath Technologies’ Marketing Team encourages users to visit the site at www.lightpath.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, visitwww.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. ### Contact: Kimberly Clifton Director of Sales Operations and Marketing LightPath Technologies, Inc. 2603 Challenger Tech Ct., Suite 100 Orlando, FL 32826

TOMORROW! SID & IEEE Joint Student Chapter Seminar: "Light Extraction of OLED Display by Microstructured Film Attachment" By Dr. Jiun-Haw Lee, 6.8.16/11:00AM-12:00PM/CREOL RM 103

SID & IEEE Joint Student Chapter Seminar: "Light Extraction of OLED Display by Microstructured Film Attachment" By Dr. Jiun-Haw Lee

Wednesday, June 8, 2016 11:00 AM to 12:00 PM
CREOL Room 103

Dr. Jiun-Haw LeeGraduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University

Abstract:

In this talk, we used different micro-structured films to improve the light extraction (LE) from an organic light-emitting diode (OLED) for display application. Different micro-structures and OLED thin-film stacks were deigned and fabricated for optimizing the LE efficiency. For display applications, not only the LE efficiency, but also the image quality should be taken into consideration. After the optimization of pixel layout and the micro-structure, we can improve the LE efficiency of an OLED display with almost indistinguishable image blurring.

Biography:

Dr. Jiun-Haw Lee received the B.S.E.E., M.S.E.E., and Ph.D. degrees in electrical engineering in 1994, 1995, and 2000, respectively, all from National Taiwan University, Taipei, Taiwan.From 2000 to 2003, he was with the RiTdisplay Corporation as the director. Since 2003, he joined the faculty of National Taiwan University in the Graduate Institute of Photonics and Optoelectronics and the Department of Electrical Engineering, where he is currently a professor. His research interests include organic optoelectronic devices, display and lighting technologies, and solar cells.He has co-authored over 100journal papers, over 300conference papers, and over 50 patents.

For additional information:

SID UCF Student Branch Chair: Haiwei Chen

SID UCF Student chapter advisor: Prof. Shin-Tson Wu

IEEE Photonics Society UCF Student Branch Chair: Juan He

TOMORROW! Seminar: "High recognition specificity remote sensing of trace gases using IR/THz double resonance spectroscopy" By Dr. Henry Everitt, 6.2.16/12:00-1:00PM/ CREOL RM 103

Seminar: "High recognition specificity remote sensing of trace gases using IR/THz double resonance spectroscopy" By Dr. Henry Everitt

Thursday, June 2, 2016 12:00 PM to 1:00 PM
CREOL Room 103

Dr. Henry Everitt (Army Aviation & Missile RD&E Center)
Research, Development, and Engineering Center
Redstone Arsenal, AL.

Abstract: 

Molecular rotational motion is quantized, just as its vibrational and electronic states are quantized. Molecular rotational energy levels depend sensitively on the shape of the molecule and the masses of the constituent atoms.  As a result, gas phase molecular rotational transitions, whose wavelengths are in the milIimeter and sub-millimeter region, provide signatures that allow chemical identification with exquisite selectivity.

This tutorial will review the basics of molecular spectroscopy, then explore its application for chemical sensing.  Specifically, a new double resonance spectroscopic technique will be described that exploits this remarkable specificity for remote chemical sensing.  The technique overcomes intrinsic limitations of atmospheric attenuation and collisional broadening that have hindered other approaches.  The hardware requirements and challenges for constructing such a spectrometer will be described.

Biography:

Dr. Henry O. Everitt is a member of the DoD senior executive service (ST) who serves as a chief scientist in the Army’s Aviation & Missile RD&E Center and is the Army’s principal subject matter expert in optical sciences.  He is an experimental physicist who specializes in the spectroscopic investigation of plasmonic nanostructures, wide bandgap semiconductors, gas phase molecular dynamics, and terahertz imaging.  

He received his Ph.D. in Physics from Duke Univ. in 1990, created major basic research initiatives in nanotechnology, engineered    electromagnetic structures, and quantum information at the Army Research Office, authored more than 100 peer-reviewed journal articles, mentored more than 60 student researchers through various adjunct faculty appointments, and is a Fellow of the American Physical Society, Optical Society of America, and the Army Research Laboratory (Emeritus).

For additional information:

Dr. Martin Richardson