Advisory Board and Speakers

Speakers at the 2017 Summit included representatives from GE Global Research, CREE, Philips Lighting, SSLs and more!

Interested in speaking at the 2018 Summit? Please reach out to Ashli Speed at  to further discuss available speaking opportunities.

  • William Beers, Ph.D.

    DFSS Black Belt / Senior System Engineer Current, powered by GE

    Dr. Beers, DFSS Black Belt/Senior Systems Engineer – Phosphors, joined GE Lighting in 1983 after receiving his Ph.D. in Inorganic Chemistry from Iowa State University.  His work has been primarily in lighting phosphors but also includes phosphors for other applications and fluorescent lamp design.  The work has resulted in implementation of new phosphor syntheses, quality improvements, cost reductions, and several new product introductions in both North America and Europe. His joint work with Dr. Alok Srivastava on quantum splitting phosphors resulted in the first publications and patents on QSP in oxide materials. In addition to synthesis, his expertise is in powder x-ray diffraction, vacuum UV spectrometry, experimental design, and the relationship between lamp spectra and human reaction such as color rendering and circadian rhythms.  Dr. Beers has 25+ publications/conference proceedings, 60 issued US patents and 25+ US patents in process.


  • Howard Bell

    Co-Founder and President Intelligent Material Solutions, Inc.

    Howard Bell is the co-founder and president of Intelligent Material Solutions Inc.  Intelligent Material Solutions Inc. is commercializing a new class of phosphors under the Intelligent Material® and Sunstone® brands.    Mr. Bell has been developing materials with unique optical properties for the last 25 years.  In the 90’s he was an owner and president of Sunstone Inc. and produced materials for the anti-counterfeit industry.  The main focus of the research was on the optical properties that are difficult to copy.  In 2003 he sold Sunstone Inc. (keeping the rights to the name) and decided to concentrate on medical research. He partnered with Josh Collins and together they tackled the challenge to attach an anti-body to an upconverting phosphor, to then have it pass through a capillary and specifically bind to a cancer cell.  The physical properties and surface chemistries of the crystals were important to control.  Mr. Bell is a co-inventor on a recently awarded, composition of matter patent that has broad claims regarding uniform phosphors and nano-phosphors.   Intelligent Material Solutions Inc. has identified 15 industries for the technology and is actively looking for commercialization partners. IMS life science products are available through Sigma(Merck) under the Sunstone® brand.  

    For the impressive numbers:  

    Mr. Bell has counted a centillion number of photons and has 69 ppm lanthanides in his blood.  

  • Dr. Marco Bettinelli

    Professor of Inorganic Chemistry, Luminescent Materials Laboratory, Department of Biotechnology University of Verona

    Born in 1957 in Cremona (Italy), Marco Bettinelli received his doctoral degree in Chemistry "cum laude" at the University of Parma in July 1981. He has been Assistant Professor at the University of Padova (1983-1992) and Associate Professor at the University of Salerno (1992-1993). In November 1993 he has moved to the University of Verona, where currently he is Professor of Inorganic Chemistry. In May 2008 he has received a doctorate honoris causa from Blaise Pascal University, Clermont-Ferrand, France. He has published more than 400 papers in the fields of Chemistry and Optical Spectroscopy of Inorganic Materials. He has been Visiting Professor in various universities abroad (among them Université de Caen, France; Université Blaise Pascal, Clermont-Ferrand, France; Kyoto University, Japan and Chalmers University of Technology, Gothenburg, Sweden) and has acted as invited speaker at many international conferences. In August 2012 he has been Co-Chair of ICFE8 (8th International Conference on f-elements), Udine, Italy. After being for seven years a member of the Board of Associate Editors, since May 2013 Marco Bettinelli is Editor-in-Chief of the Journal of Luminescence (Elsevier). His scientific interests deal with numerous aspects of luminescent materials, and in particular with the synthesis, characterization and spectroscopic (luminescence and upconversion) properties of crystalline, nanocrystalline and amorphous systems containing lanthanide and transition metal ions.

  • Dr Lionel Bonneau

    Scientific Director BAIKOWSKI

    Dr. Lionel Bonneau recieved his doctoral degree in Inorganic Chemistry from the University Paris VI in 1981. He has served as the Director of Research and Development, Technical Marketing, Control at the Baikowski, Poisy Plant since 1998.

  • Mikhail G. Brik

    Professor Institute of Physics, University of Tartu

    Professor Mikhail G. Brik received his PhD degree from Kuban State University (Krasnodar, Russia) in 1995 and his Doctor of Science (habilitation) degree from the Institute of Physics, Polish Academy of Sciences (Warsaw, Poland) in 2012. Since 2007 he has been taking a Professor position at the Institute of Physics, University of Tartu, Estonia. Before that, he had been working in Kyoto University (Kyoto, Japan), 2003- 2007; Weizmann Institute of Science (Rehovot, Israel), 2002; Asmara University (Asmara, Eritrea), 2000-2001; Kuban State University (Krasnodar, Russia), 1995-2000. He is also a Guest Professor at Chongqing University of Posts and Telecommunications (China), Institute of Physics, Polish Academy of Sciences and Jan Dlugosz University (both in Poland). Since 2015 he serves as one of the Editors of the “Optical Materials” journal (Elsevier). His area of scientific interests covers theoretical spectroscopy of transition metal and rare earth ions in optical materials, crystal field theory, ab initio calculations of physical properties of pure and doped functional compounds. He is a co-editor of two books, author of 10 book chapters and about 290 papers in international journals. According to Google Scholar, he has more than 2800 citations with h-index=26. In 2013 he has received the State Prize of Republic of Estonia in the field of exact sciences.

  • Dr. Nerine Cherepy

    Research Scientist Lawrence Livermore National Laboratory

    Nerine Cherepy earned a Ph.D. in Physical Chemistry from the University of California, Berkeley, utilizing laser spectroscopy to study energy and electron transfer.  After postdoctoral work at the University of California, Santa Cruz on ultrafast laser spectroscopy, she joined Lawrence Livermore National Laboratory.  Since 2005, she has worked on the development new light-emitting materials, including single crystals, transparent ceramics and plastics, for various uses in ionizing radiation detection, new imaging screens and lighting phosphors.  She has three R&D 100 awards, 15 awarded patents, more than 100 published papers, and she is a co-recipient of DHS’s Award for Excellence in Scintillator Discovery.  She is a Senior Member of IEEE and SPIE and a 2016 recipient of the Lawrence Livermore National Laboratory Mid-Career Award.

  • Eugeniusz Zych

    Professor University of Wroclaw

    The main research interest of prof. Eugeniusz Zych is nano- or microcrystalline phosphors and their sintered versions.  He discovered a new family of persistent and storage phosphors based on Lu2O3 host and activated with Tb or Pr.  Among them, the Lu2O3:Tb,Hf ceramics thermoluminescence intensity was found to follow precisely the exponential growth with dose  over at least seven orders of magnitude.  He found that co-doping of those compositions, combined with specific fabrication procedures may strongly alter their thermoluminescent properties.  In his research prof. Zych is very much interested in exposing and understanding how parameters of chemical procedures of materials fabrication may affect their characteristics and peculiarities.  In the core of his research are thus questions on management of defects to deliberately shape materials properties. 

  • Eric Haugaard

    Director of Product Technology Cree Lighting

    Eric Haugaard is the Director of Product Technology for Cree Lighting. His career of 29 years includes a variety of positions primarily focused on advanced lightning systems development. Eric holds a Bachelor of Science degree in Mechanical Engineering, with Post-Baccalaureate Program studies completed at NASA/Ames Research Center.  He holds 48 US and 16 foreign patents related to lighting technology.

  • Dr. Daiyu Hayashi

    Research, Smart Interfaces & Modules Philips Group Innovation

    D. Hayashi studied in Kyoto and received his Ph.D. from Nagoya University, Japan in 1999 for his work on laser-spectroscopy for negative ions in plasmas. After his postdoctoral researches in Eindhoven University of Technology, the Netherlands, he joined Philips Research Aachen, Germany in 2001 as a research scientist, where he worked on light generation technologies, especially on automotive lamps and UV light sources.

    Since 2011 he is working in Philips Research Eindhoven the Netherlands, where he is currently involved in spectral tissue diagnostics for minimally-invasive diagnostics and surgeries.

  • Dr. Hubert Huppertz

    Univ.-Prof. Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Austria

    Hubert Huppertz studied chemistry at the University of Bayreuth, Germany. In 1997, he finished his doctorate with a fundamental work on the structural extension of nitridosilicates in the group of Prof. Schnick. Changing to the Ludwig-Maximilians-University in Munich, he conducted his habilitation from 1998-2003 with a chemical focus on high-pressure/high-temperature syntheses. In 2008, he was appointed as full professor for General and Inorganic Chemistry at the University of Innsbruck, Austria. His main research interests are dedicated to the explorative synthetic discovery of new compounds in solid state chemistry, e.g. in the syntheses of novel phosphor materials in a fruitful cooperation with Osram. Since 2013, he also fills the position of a Dean of the Faculty of Chemistry and Pharmacy at the University of Innsbruck.

  • Prof. Dr. Thomas Jüstel

    Dept. Chemical Engineering University of Applied Sciences Münster

    Prof. Dr. Thomas Jüstel was born in Witten, Germany in 1968. He studied chemistry and biology at the Ruhr-University of Bochum from 1987 to 1992. He received his Ph.D. in coordination chemistry in spring 1995 in the group of Prof. Dr. Karl Wieghardt. Afterwards, he worked as a postdoctoral fellow at the MPI Muehlheim for Radiation Chemistry.

    He was hired by the Philips Research Laboratories Aachen in summer 1995 as a Research Scientist, where he started to work on luminescent materials. Some years later he became a Senior Scientist and then he was promoted to a Principal Scientist in 2003. In spring 2004 he became a professor for Inorganic Chemistry and Material Sciences at the Muenster University of Applied Sciences. His research group deals with photochemistry, nanoscale and m-scale luminescent materials for LEDs, UV radiation sources and x-ray detectors. He also consults several chemical and lighting companies.

    His work has been published in 100 papers and lead to more than 180 patents on luminescent compositions and their application in fluorescent lamps, plasma displays, x-ray detectors, and LEDs.

    • Germany
  • Ingo Koehler

    Head of R&D Lighting - Performance Materials Division Merck KGaA

    Since end of 2013 Ingo Koehler is Director Gobal R&D Solid State Lighting at Merck KGaA, Germany. In 2011 he became the global director of Technical Marketing and R&D responsible for customers in the touch-panel and the photovoltaic markets. He worked in this field since 2007 as the R&D leader of new business topics. When he joined Merck in 2005 he was responsible for the development of OLED production technologies. From 2000-2005 he was responsible for product development in various companies working in the fields of glass fibers, laser processes, and the development of sapphire substrates for GaN-LEDs.

    Ingo Koehler holds a Ph.D. in semiconductor and solid state physics is a member of the scientific advisory board of Fraunhofer ISE PV-TEC, Germany

  • Professor Vladimir Krstic

    Professor Queen's University

    Professor Vladimir Krstic earned his BS form the University of Belgrade and a Ph.D. from McMaster University in Materials Science where he studied processing and properties development in oxide and non-oxide ceramics. Prof. Krstic was founder and Director of the Centre for Advanced Ceramics and Nanomaterials at Queen’s University where he led a group of 30 researchers working on synthesis and fabrication of high toughness high strength ceramics for automotive and welding industries, lead-free piezoelectric ceramics, high electrical conductivity oxide ceramics for Solid Oxide Fuel Cells and high thermal conductivity ceramics for electronic industry. Currently, Prof. Krstic leads a group of researches that focuses on new high efficiency light emitting polycrystalline materials for image projection and LEDs. In addition to quantum efficiency, the current work is centered on enhancing the red colour intensity in the yellow spectrum.  His work has produced more than 140 scientific publications as well as 8 US patents.  

  • Jan Kubat, Ph.D.

    Product Line Manager CRYTUR spol. sro.

    Jan is a product line manager for phosphor materials at CRYTUR company in Turnov, Czech Republic. He leads a team of researchers focusing on single crystals development and their applications in the field of solid state lightening, high power lasers, scintillators and other niche applications. Jan is also responsible for business development of advanced phosphor materials for high power light emitting diodes. In the past  he was a consultant of Performance Improvement at PricewaterhouseCoopers Czech Republic.

  • Dr. Xiaogang Liu

    Associate Professor of Chemistry National University of Singapore

    Dr. Xiaogang Liu earned his BS degree (1996) in Chemical Engineering from Beijing Technology and Business University, China. He received his MS degree (1999) in Chemistry from East Carolina University in Greenville, North Carolina under the direction of Prof. John Sibert and completed his PhD (2004) in Chemistry at Northwestern University in Evanston, Illinois under the supervision of Prof. Chad Mirkin. In the same year he became a postdoctoral fellow in the group of Prof. Francesco Stellacci at MIT. He joined the faculty of the National University of Singapore in 2006. He holds a joint appointment with the Institute of Materials Research and Engineering, Agency for Science, Technology and Research. His interests include nanomaterials synthesis, supramolecular chemistry, and surface science for catalysis, sensors and biomedical applications.

  • Prof. Dr. Andries Meijerink

    Professor University of Utrecht

    Professor Andries Meijerink (52) leads an active research group that focuses on the optical spectroscopy of lanthanide ions in solids and of semiconductor quantum dots. In the field of lanthanide ions his recent work involves fundamental research on finding new concepts also related to applications in solar cells, LEDs and scintillators. The research on quantum dots is aimed at unraveling the influence of quantum confinement and surface effects on the electronic structure of quantum dots through optical spectroscopy and using the quantum dots as labels in bio-imaging. For his research Andries Meijerink has received several awards, including the DSM Award for Chemistry and Technology (1989), the Shell Incentive Award (1995), the Gold Medal of the Royal Dutch Chemical Society (1999) and the Centennial Award for Luminescence and Display Materials from the Electrochemical Society (2002). In 2009 he was elected as a member of the Royal Netherlands Academy of Sciences.

  • Dr. Morgan Pattison

    President, Senior Technical Advisor Solid State Lighting Services, DOE SSL Program

    Morgan Pattison is President of SSLS, Inc. a technical consulting firm focused on LEDs, OLEDs, and solid state lighting.  He also serves as Senior Technical Advisor to the U.S. DOE Solid State Lighting Program.  In this capacity Morgan provides technical direction for DOE supported R&D, co-authors the DOE SSL Multi-Year Program Plan and Manufacturing Roadmaps, and monitors DOE supported R&D projects.  Morgan has a Ph.D. in Materials Science from the University of California, Santa Barbara with an emphasis on electronic and photonic materials.  At UCSB Morgan performed research on GaN micro-cavity LEDs, non-polar LEDs, laser diodes, VCSELS, and UV LEDs.

  • Dr. Kirstin Petersen

    Senior Manager / Phosphors (Material Innovation) OSRAM Opto Semiconductors GmbH

    Dr. Kirstin Petersen received her Diploma degree in physics from RWTH Aachen. During an extended research visit at the Optical Science Centre of University of Arizona, Tucson, she was researching on semiconductor thin films until her attention was directed to softer condensed matter. At the Max Planck Institute for polymer research Kirstin Petersen studied thin polymer films and received her PhD in Physical Chemistry from University of Mainz. Since then she has been working at OSRAM OS as a materials development engineer and has been leading OSRAM OS’s phosphor development group for the last 5 years.

  • Tessa Pocock PhD

    Senior Research Scientist Center for Lighting Enabled Systems and Applications (LESA)

    Tessa Pocock PhD is a Senior Research Scientist at the Center for Lighting Enabled Systems and Applications (LESA) at Rensselaer Polytechnic Institute in Troy, New York.  She was transported to Sweden from Canada as a recipient of a Marie Curie Fellowship and came to LESA after working for almost a decade in the European horticultural lighting industry. Her specific interest is using light to reprogram photochemical, photosynthetic and biochemical processes in plants. Her research laboratory is situated in an engineering department where engineers and plant scientists are fusing solid state technology with the biological sciences.

  • Dr. Madis Raukas

    RD Manager- Materials Corporate Innovation OSRAM SYLVANIA

    Dr. Madis Raukas received his degree in Physics from the University of Georgia in Athens, Georgia, where he studied different materials for their light emitting efficiency and quenching criteria with Profs. Yen and Happek.  He joined OSRAM SYLVANIA Central Research in Beverly Massachusetts in 1997 and has worked since on understanding and developing various optical materials for the lighting industry.   After a visiting period at Osram Opto Semiconductors in Regensburg, Germany Dr. Raukas returned to the US and currently leads the Materials Science group at company’s Central Research Labs.  His research interests cover different LED materials aspects with a particular focus on novel light generation and conversion schemes.  His work has produced more than 30 scientific publications as well as numerous patents and he received the OSRAM 2011 Innovation Award.    

  • Dr. Hiroaki Sakuta

    Manager, LED Materials Department Mitsubishi Chemical Corporation

    Hiroaki studied material science of nitride semiconductor at the Yamaguchi-University from 2003 to 2008. Hiroaki received my Ph.D. in an ion beam analysis of nitride semiconductors in spring 2008.

    Hiroaki joined Mitsubishi Chemical Corporation in 2008 as a Research Scientist, where he started to work on luminescent materials. He researched and developed LED PKGs with several color appearances and high efficacy using phosphors. Now, Hiroaki works in marketing of phosphor materials.

  • Dr. Oleg B. Shchekin

    Senior Director of Device Architecture, Technology Research and Development Lumileds

    Oleg B. Shchekin is the Senior Director of Device Architecture Section of Technology Research and Development at Lumileds.  Work in his group is focused on interactions between LED building blocks and optimization of LED design through modeling and advanced characterization.  Previously he headed up Phosphor Materials and Devices Section focusing on phosphor converted LEDs, luminescent material characterization their selection for maximum LED efficiency, and optimal color quality.  His past professional pursuits include crystal growth and physics of long-wavelength GaAs-based quantum-dot lasers, and physics and manufacturing of integrated circuits based on thin-film organic semiconductor transistors  His work has been recognized by various awards as well as industry review publications.

  • Professor Jack Silver

    Professor Brunel University London

    Professor Jack Silver is Theme Leader, Materials Characterisation and Processing in the Institute of Materials and Manufacturing and the Executive Director of the Wolfson Centre for Materials Processing in Brunel University London. He has published over 400 papers in refereed international journals as well as reviews and book chapters and has held more than 20 patents (including a pharmaceutical composition that is used in over one hundred countries to remove iron from the body in a variety of iron overload diseases/conditions.). He received his PhD in 1973 from London University and has been an active researcher since then. His DSc. was awarded by London University in 1992 for his work in the fields of coordination chemistry, bio-inorganic chemistry and organometallic chemistry. Since 1996 he has been Professor and head of the Phosphor and Display Materials research group, first at Greenwich University, then at Brunel University London after he moved the group in 2006. Since 1998 he has published over 180 papers on phosphors and display materials. He has given many invited lectures at international and national conferences in the fields of phosphors, electronic display materials and inorganic chemistry. Jack’s work on phosphors encompasses photoluminescence and cathodoluminescence for lighting applications, electroluminescence for use in displays and infra-red emitting phosphors for military and secrecy applications. Since 1998 he has published over 180 papers on phosphors and display materials. He has attended all of the previous Phosphor Global Summit meetings.

  • Kee-Sun Sohn

    Prof., Faculty of Nanotechnology and Advanced Materials Engineering Sejong University

    He obtained his Ph.D. degree in materials science from POSTECH, South Korea, in 1996. He has work on luminescent materials along with combinatorial material science since he joined as a senior researcher in Korea Research Institute of Chemical Technology in 1998. He moved to Sunchon National University in 2001 and continued to work on the same research topic up to now.  He is currently a professor at the faculty of nanotechnology and advanced materials engineering, Sejong University, South Korea. His current research interest centers on phosphors for use in LEDs. In addition to the phosphor research, he has a specialty on the heuristics optimization-involved combinatorial material science and deep learning for materials discovery. He has co-authored two book chapters and 127 peer-reviewed papers.

  • Dr. Alok M. Srivastava

    Principal Scientist, Energy Storage & Conversion Materials Technologies GE Global Research

    Dr. Alok Srivastava received his Ph.D. in inorganic and Solid State Chemistry in 1986 from Polytechnic University of New York. In 1989 he joined the GE Global Research in Niskayuna, New York, where he is currently a Principle Scientist. Dr. Srivastava’s research describes the relationship between the synthesis, crystal structure and optical properties of rare earth and transition metal ions in solids. He has conducted research in collaboration with GE Lighting, GE HealthCare and GE Energy on luminescent materials for fluorescent lamps, LED lighting, scintillator and solar materials. For his pioneering research to achieve the first demonstration of quantum splitting in oxide phosphors, he was awarded the First Centennial Outstanding Achievement Award of the Luminescence and Display Materials Division of The Electrochemical Society. He has published more than 80 articles in international journals and has been awarded 100 US patents. He is the former Chairman of the Luminescence and Display Materials group of The Electrochemical Society. He serves on the editorial board of Optical Materials and The Journal of the American Ceramic Society. 

    Seminar: Designing luminescent materials

    The purpose of this seminar is to discuss tools that can be used to design luminescent materials (phosphors and scintillators) with the goal of developing lighting and detector products with maximum efficacy and at minimum cost. Major topics that will be covered are the selection of host lattice and of the luminescent ion, the influence of chemical composition and crystal structure on the spectral attributes of the luminescent material. The seminar will also provide an overview of phosphors and scintillators that are of commercial importance.  

  • Prof. Dr. Setsuhisa TANABE

    Professor Kyoto University

    Prof. Setsuhisa Tanabe received his PhD in Optical properties of rare-earth doped glasses for upconversion lasers at Department of Industrial Chemistry, Kyoto University in 1993.  After working as an assistant professor, he was promoted to an associate professor in 2001 and to a full Professor in 2008 all in Kyoto University.  He is the author of 200 original papers, 26 book chapters, and 39 review papers on rare-earth doped luminescent materials for upconversion, fiber amplifier for optical telecommunication, LED phosphors and downconverters for photovoltaics.  He has served as a plenary or invited speaker at more than 70 international conferences.  He was a visiting scientist at Rutgers University, NJ, USA during 1996-1997 and was an invited professor at University of Rennes in 2010 and at Chimie ParisTech in 2016 both in France.  He is now an Associate Editor of Journal of Luminescence.  He received academic awards from the Ceramic Society of Japan (2009), the Rare-Earth Society of Japan (2002), the Chemical Society of Japan (1997) as well as several awards from Inoue Science Foundation (1993), the Opto-Science Foundation (1995) and International Commission on Glass (2012), etc.

  • Dr. Mihaela Tarpan

    Expert Research Engineer Barco N.V.

    Dr. Mihaela Tarpan received her Ph.D. in Solid State Physics in 2010 from Gent University (Belgium). She joined Barco N.V. in the same year where she is currently working as Expert Research Engineer in the “New technology introduction (NTI)” group of the Entertainment Division.  One of the main research tracks investigated by the group is laser - phosphor light sources for projection applications. Using phosphors in solid state projection light sources comes with a lot of benefits but also with a lot of challenges especially for markets like Digital Cinema where the projectors must be very bright (above 10000 lm on the screen) and must follow very strict color specifications (DCI color gamut). These particularities translates into the need of having phosphor converters that still works very efficient under very high blue laser illumination (power densities in the order of tens of Watts per mm2 ) and at very high temperature and it is the task of NTI group to investigate these challenges and propose solutions for ever brighter and better end-products.

  • Kenji Toda

    Research Professor Niigata University, Japan

    Kenji Toda is a research professor in Niigata University, JAPAN. He received his Ph.D. in 1995 from Niigata University, JAPAN. From 1988 to 1992, he worked in Nippon Kodoshi Corporation in Japan as a researcher.

    His main research topics include development of new phosphor and photocatalyst materials and soft chemical synthesis of ceramic. He has published more than 250 papers, applied 82 patents. He received “The Rare Earth Society of Japan Award (Shiokawa Award)”, IDW( International Display Workshops)'14 Best Paper Award in 2014 and Outstanding Poster Paper Award from IDW in 2005, 2010 and 2013.

  • Dr. Marie Anne van de Haar

    Project Manager Seaborough Research

    Dr Marie Anne van de Haar recently obtained her PhD from the group of Prof. Dr Albert Polman (AMOLF, Amsterdam), a world-leading group in nanophotonics and plasmonics. During her PhD she collaborated with multiple other prestigious groups, including the group of Prof. Dr Harry Atwater from Caltech and the group of Prof. Dr Jennifer Dionne from Stanford. In combination with her work on luminescent materials in the group of Prof. Dr Andries Meijerink during her master, which resulted in graduating ‘with honor’, Dr Van de Haar has a strong background in both luminescent materials and nanophotonics.

  • Dr. Sadakazu Wakui

    Engineer of LED Back-End Material Engineering Department Nichia

    Wakui-san received his Ph.D. in Engineering in 2010 at the University of Electro-Communications, Japan.  His research interest at the doctoral course is nano-scale dielectric properties near semiconductor / oxide interfaces using first principles calculations.  Since joining Nichia in 2010, Wakui-san has been working in the development of new phosphors

  • René Wegh

    R&D Project Manager and Principal Scientist Philips Lighting Research

    René Wegh is R&D project manager and principal scientist at Philips Lighting Research. He has been working for 17 years now within Philips / Philips Lighting, of which the last 10 years as expert in the field of light conversion and phosphors for LED lighting. Before his career at Philips, he obtained his Ph.D. at Utrecht University in the group of Professor Meijerink on vacuum UV spectroscopy and quantum cutting of lanthanides. He has given several invited lectures, has received 3 awards as recognition for his work and holds 25+ US patents.

  • Clarence J. Zarobila

    Physicist, Sensor Science Division, Remote Sensing Group National Institute of Standards and Technology

    Clarence J. Zarobila received his B.S. and M.S. degrees in Physics from John Carroll University (Cleveland, Ohio) in 1982. He began his career at Optical Technologies, Inc., (OPTECH) developing fiber-optic sensor and other sensor systems for commercial, medical, geophysical, and military applications.  In 1995, he moved to Hunter Associates Laboratory, Inc. (HunterLab) where he served as Optical Engineer, responsible for the design, calibration, and manufacturing support of hand-held, bench-top, and on-line colorimeters and spectrophotometers, participating in all stages of product development from concept to market launch. In 2009, he joined Jung Research and Development at NIST, providing PML's Sensor Science Division with optical engineering and related support, primarily assisting with the development of ROSI (the Robotic Optical Scattering Instrument), soon to be the nation's new reference instrument for the measurement of the reflectance and scattering of non-fluorescent materials from wavelengths between the ultraviolet and short-wave infrared. In late December 2016, he moved to a staff position in the Physical Measurement Laboratory (PML) at NIST as a Physicist in the Remote Sensing Group, where he continues to support staff at PML and also the staff in NIST's Engineering Laboratory.

  • Dr. Aleksander Zych

    Research Scientist Lighting | Lab Manager Lighting Merck KGaA

    Chemist by training with a PhD in Physical Chemistry under the guidance of Prof. Andries Meijerink and about 10 years long experience in various luminescence applications, Dr. Aleksander Zych is currently working in the field of phosphor research for LED lighting.  Main focus of his professional interests is in the area of lanthanide-based inorganic luminescent materials, with emphasis on design, synthesis and spectroscopic characterization of new phosphors.  He currently works in the R&D department of EMD in Darmstadt, Germany, holding the position of a Research Scientist and Lab Manager for the last five years.