Wednesday, October 25, 2017

JENOPTIK Further Expands Manufacturing Capacity with a New Class 5 Cleanroom
      25 October 2017, Jupiter, FL USA — Jenoptik Optical Systems, LLC, a leading worldwide supplier of high performance optical solutions, announces the expansion of its manufacturing operations in Florida. Jenoptik opened a new ISO 14644 Class 5 cleanroom with state-of-the-art filtration technology for high-precision optical assemblies to support applications with demanding cleanliness requirements like semiconductor and space flight instrumentation. Additionally, Jenoptik has extended site capabilities by investing in a new thermal vacuum chamber in the cleanroom. The Class 5 cleanroom complements the pre-existing ISO 14644 Class 7 cleanroom and triples the amount of cleanroom space in Florida.
      Jenoptik’s continued expansion in Florida is the direct result of customer volume requirements for the company’s products. This new facility complements the cleanroom capacity in Huntsville, AL. The Huntsville facility is purpose-built to meet the rigorous requirements of leading-edge semiconductor-related manufacturing activities.
     Jay Kumler, President of Jenoptik Optical Systems in North America, commented, "We are investing in differentiating technologies, advanced equipment and employees, and we are committed to meeting our customers’ expectations for higher levels of cleanliness and contamination control.”
     Leading equipment manufacturers around the globe rely on Jenoptik’s products to build semiconductor devices, telecommunications equipment, digital projection, mobile devices, augmented reality, industrial automation and connected vehicles. Our optical systems are helping lead the digital transformation and internet of things.
     Jenoptik looks forward to the new opportunities the expansion will provide and the partnerships that will be the result of their success. For additional information on Jenoptik’s capabilities please visit

Monday, October 23, 2017

Distinguished Seminar Speaker: "Fun with Fast (but not Furious) Tunable Lasers in the Infrared" by C. Kumar N. Patel, 10.27.17/3:00PM-4:00PM/CREOL RM 102/103

Distinguished Seminar Speaker: "Fun with Fast (but not Furious) Tunable Lasers in the Infrared" by C. Kumar N. Patel
Friday, October 27, 2017 3:00 PM to 4:00 PM
CREOL Room 102/103
C. Kumar N. Patel
Pranalytica, Inc.

The invention and development of all-electronically tuned quantum cascade lasers has made it possible to obtain spectral information, covering over 1 µm in the long wave infrared region, regarding absorbers in less than fraction of a millisecond. The electronic tuning is achieved through the use of a acousto-optically generated phase grating in a crystal. As described previously, the acousto-optic modulator (AOM) tuned QCL is capable of switching lasing wavelengths in time of the order of 0.5 µs, regardless of the size of the wavelength step. The wavelength tuning is achieved via change in the acoustic wave RF frequency. Thus, a complete spectrum covering > 1 µm tuning (for example from ~8.5 µm to ~ 9.5 µm) can be obtained in less than 20 µs, when the RF frequency is changed in response to an analog drive. For experimental reproducibility of spectra, we have implemented a digital scanning system that permits selection of step size and step speed. Using the AOM tuned QCL, we have carried out a number of studies to explore the usefulness of rapid scanning QCL systems. One study involves spectroscopy of liquids. Since almost all liquids absorb very strongly in the long wave infrared region, we have used attenuated total reflection (ATR) to study liquids such as isopropyl alcohol (IPA), ethanol, water, various alcoholic beverage such as vodka, gin and scotch, 2,2,2-trifluroethanol and Epsom salt dissolved in water. In each case a complete spectrum from ~8.5 µm to ~ 9.5 µm is recorded in a single shot 500 µs scan. From these studies, we can verify the claimed “proof” of the alcoholic beverages. In another study, we have explored mixing of gases (R134A HFC bolus injected into a fast flowing stream of air) in a flow tube where time dependent spectra of mixing gases are obtained in >600 consecutive shots during a 300 ms time span. I will describe both studies in detail, including a video showing the flow mixing evolution on millisecond time scale. The fast spectroscopic study of liquids now opens up the potentially exciting area of real time process monitoring in chemical, biological and food and wine industry. The transient flow spectroscopy study clearly indicates that the AOM tuned QCL system will be of immediate use in supersonic flow studies and in the study of combustion and explosion dynamics.

Dr. C. Kumar N. Patel is the Founder, President and the CEO of Pranalytica, a company located in Santa Monica, CA, specializing in high power quantum cascade lasers and applications. Pranalytica is the leader in QCL technology through its invention of a radically QCL new structure design, called the non-resonant extraction, which has allowed Pranalytica to offer commercial QCLs that produce highest powers anywhere in the world. He is the inventor of the carbon dioxide, carbon monoxide, and the Spin-Flip Raman lasers. He pioneered the use of these and other lasers to measure trace gases in difficult environments. He was at AT&T (now Lucent Technologies) Bell Laboratories for thirty-two years and was Executive Director of the Physics Division and of the Materials Research Division. Under his leadership, Bell Labs produced some of the most critical technologies for optical communications. The quantum cascade laser was also invented in Physics Division during his leadership. From 1993 to 1999 he was the Vice Chancellor for Research at UCLA. Dr. Patel was elected to the National Academy of Science in 1974 and the National Academy of Engineering in 1978. Dr. Patel has received every major scientific honor in the United States. He received the National Medal of Science given by the President of the United States in 1996. In 2012, he was inducted into the National Inventors’ Hall of fame. In recognition of the CO2 laser’s importance to the medical field, he has been elected as an Honorary Member of the Gynecologic Laser Surgery Society in 1980 and in 1985 he was elected an Honorary Member of the American Society for Laser Medicine and Surgery.

For more information:
Bahaa Saleh

Thursday, October 19, 2017

Press Release - LightPath Technologies Schedules Fiscal 2018 First Quarter Financial Results Conference Call for November 9

For Immediate Release

LightPath Technologies Schedules Fiscal 2018 First Quarter Financial Results Conference Call for November 9

ORLANDO, FL – October 19, 2017 - LightPath Technologies, Inc. (NASDAQ: LPTH) (“LightPath,” the “Company” or “we”), a leading vertically integrated global manufacturerdistributor and integrator of proprietary optical and infrared components and high-level assemblies, today announced the scheduling of its fiscal 2018 first quarter financial results press release issuance and the corresponding conference call and simultaneous webcast.  The press release will be issued on November 9, 2017 after the close of the stock market. 

Investor Conference Call and Webcast Details:

Date: Thursday, November 9, 2017
Time: 4:30 PM (ET)
Dial-in Number: 1-877-317-2514  
International Dial-in Number: 1-412-317-2514 

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 November 23, 2017. To listen to the replay, dial 1-877-344-7529 (domestic) or 1-412-317-0088 (international), and enter conference ID #10113453.

About LightPath Technologies

LightPath Technologies, Inc. (NASDAQ: LPTH) is a leading global, vertically integrated provider of optics, photonics and infrared solutions for the industrial, defense, telecommunications, testing and measurement, and medical industries. LightPath designs, manufactures, and distributes proprietary 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.  The Company is headquartered in Orlando, Florida, with manufacturing and sales offices in New York, Latvia and China.

LightPath’s wholly-owned subsidiary ISP Optics Corporation manufactures a full range of infrared products from high performance MWIR and LWIR lenses and lens assemblies.  ISP’s infrared lens assembly product line includes athermal lens systems used in cooled and un-cooled thermal imaging cameras.  Manufacturing is performed in-house to provide precision optical components including spherical, aspherical and diffractive coated infrared lenses.  ISP’s optics processes allow it to manufacture its products from all important types of infrared materials and crystals.  Manufacturing processes include CNC grinding and CNC polishing, diamond turning, continuous and conventional polishing, optical contacting and advanced coating technologies.
For more information on LightPath and its businesses, please visit

Forward-Looking Statements

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.

Wednesday, October 18, 2017

Seminar: "Completing Bohr’s Complementarity" by Xiao-Feng Qian, 10.30.17/1:00PM-2:00PM/CREOL RM 103

Seminar: "Completing Bohr’s Complementarity" by Xiao-Feng Qian
Monday, October 30, 2017 1:00 PM to 2:00 PM
CREOL Room 103
Dr. Xiaofeng QianThe Institute of Optics, and Department of Physics & Astronomy
University of Rochester

The understanding of the nature of light has been one of the most fundamental and ancient issues of science history. Wave and particle are two dominating interpretations of light. The debate of light being either a particle or a wave has gone back and forth over the centuries from Newton’s corpuscular theory and Huygens’ wave description in the 17th century, through the prevalence of wave interpretation in the 19th century due to Fresnel, Young, and Maxwell, all the way to Einstein’s photoelectric effect of photon description and de Broglie’s matter wave theory in early 20th century. The widely accepted qualitative resolution has been Bohr’s complementarity principle which states that light is actually BOTH wave and particle but they are two mutually exclusive properties [1]. Initiative search of a comprehensive quantitative analysis of this wave-particle duality picture wasn’t carefully pursued until around the 1980s by Wootters-Zurek, Glauber, and Mandel [2]. The consequence has been the famous complementary constraint relation for single photons, i.e., D2 + V 2 1, repeatedly rediscovered around the 1990s by Greenberger-Yasin, Jaeger-Horne-Shimony, and Englert [3], with visibility V representing wave property and distinguishability D labeling particle behavior. Unfortunately, even almost 40 years after its discovery, no careful attention has been paid to the fact that the inequality D2 + V 2 1 embodies neither completeness nor exclusivity, two essential factors of Bohr’s complementarity. Something must be missing. We solve the issue by performing a quantitative analysis of light’s wave and particle (ray) properties in the classical regime. We recover the relation V 2 + D2 1 for a generic classical light field. By taking into account a previously neglected third key property of the field, i.e., classical entanglement (measured by concurrence C [4]), a generic complete three-way complementary relation V 2+D2+C2 = 1 is observed for the first time to satisfy both completeness and exclusivity. Experimental results of an optical beam interfering through a Mach-Zehnder interferometer has confirmed the theoretical predictions [5]. The three-way relation reveals fundamental coherence constraints of light fields, and it also suggests a modified view of the traditional complementary wave-particle duality for light. The results are also valid for single quantum particles indicating its universality. This work is the result of collaboration with J.H. Eberly and A.N. Vamivakas at Rochester. We would like to thank discussions with G.S. Agarwal, B. Englert, P. Milonni, M. Raymer, W. Schleich, W. Zurek. Support from NSF grants PHY-1203931, PHY-1505189, and INSPIRE PHY-1539859, as well as ARO W911NF-14-1-063, ONR N00014-14-1-0260, and a Univ. Rochester Research Award is acknowledged.

Dr. Xiaofeng Qian received his Ph.D. degree in 2014 from the Department of Physics and Astronomy, University of Rochester, supervised by Dr. Joseph H Eberly. He then became a Visiting Scientist and subsequently an Instructor/Fellow at the same department. Since July 2015 he joined the Institute of Optics at the University of Rochester as a Research Associate. His research focuses on experimental and theoretical issues of quantum and coherence optics. His works in the emerging field of optical coherence/entanglement has received various attention in the physics and optics communities with coverages from professional organizations and science-news websites.

For additional information:
Ayman Abouraddy

Wednesday, October 11, 2017

TOMORROW! Tutorial on Laser Beam Propagation Through Random Media by Larry C. Andrews, 10.12.17/10:00AM-11:30AM/CREOL RM 103

Tutorial on Laser Beam Propagation Through Random Media by Larry C. Andrews
Thursday, October 12, 2017 10:00 AM to 11:30 AM
CREOL Room 103
Larry C. Andrews, Professor Emeritus
Townes Laser Institute, CREOL

Dr. Larry Andrews is Professor Emeritus of Mathematics at the University of Central Florida and an associate member of the Townes Laser Institute in the College of Optics/CREOL. Previously, he held a faculty position at Tri-State University and was a staff mathematician with the Magnavox Company, antisubmarine warfare (ASW) operation. He received a doctoral degree in in theoretical mechanics in 1970 from Michigan State University. Dr. Andrews has been an active researcher in optical wave propagation through random media for more than 30 years and is the author or co-author of twelve textbooks on topics of differential equations, boundary value problems, special functions, integral transforms, wave propagation through random media, and mathematical techniques for engineers. He is a Fellow of the SPIE and also author of three Field Guides on Atmospheric Optics and Special Functions. Along with wave propagation through random media, his research interests include special functions, random variables, atmospheric turbulence, and signal processing.

For additional information:
Guifang Li