2008 Events

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December 12, 2008: "Laser Show at De Anza College Fujitsu Planetarium - An Annual IEEE SCV-LEOS Holiday Event for the Whole Family"


Every December, SCV-LEOS has a holiday event for the whole family to enjoy. This year, we'll be having a laser light show at the very impressive De Anza College Fujitsu Planetarium, which has a state-of-the-art system. In addition to seeing and enjoying a holiday light show, there will be opportunities before and after the show for interested people to tour the control panel to the system, and even try out the controls for themselves. We will also take some time between numbers to explain how the projection system works, so you can understand "the magic behind the curtain". We will have holiday cakes and drinks before the event, and will be giving short tours to groups of 15 at a time. Please show up a few minutes early if you want a tour. Please arrive no later than 7:50pm if you do not care about the control panel tour or refreshments, but only want to see the show. The show will start promptly at 8pm, and sign-in takes a few minutes.

November 13, 2008: "New Age Fiber Crystals" by Dr. Philip Russell, Max-Planck Research Group, Institute for Optics, Information & Photonics, University of Erlangen-Nüremberg, Germany; Past IEEE LEOS Distinguished Lecturer (2004-2006)

Abstract: Photonic crystal fibres (PCFs) have been the focus of increasing scientific and technological interest since the first working example was reported in 1996 (for reviews see [1-4]). Although superficially similar to a conventional hair-thin glass optical fibre, PCF has a unique microstructure, consisting of an array of microscopic hollow channels running along its entire length. These channels act as optical barriers or scatterers, and suitably arranged can "corral" light within a central core (either hollow or made of solid glass). PCF can trap light in two different ways: by a modified form of total internal reflection, when the core must have a higher average refractive index than the photonic crystal cladding; and by a two-dimensional photonic bandgap, when the index of the core is uncritical - it can be hollow or filled with material. Light can be controlled and transformed in these fibres with unprecedented freedom, allowing for example precision guidance of light in a narrow hollow core, the creation of highly nonlinear PCFs with accurately controlled dispersion profiles, the design of fibres that guide only one mode at all wavelengths, and the observation of stimulated Raman scattering in hydrogen at threshold powers six orders of magnitude lower than ever seen before in single-pass geometries. Recently in Erlangen we have been using PCF as a means of realizing ultra-long silica-air nanostructures, both empty and selectively filled with metal or semiconductor. The photonic and phononic characteristics of these structures turn out to be very intriguing. For example, the microwave sound can be trapped in a nanostructured glass core, permitting the creation of artificial "Raman-active molecules" that can be used to produce low-threshold spectral broadening of laser light [5], and light can be coupled into guided surface plasmon waves on metallic nanowires [6]. These are just a few examples of how the PCF concept has ushered in a new and more versatile era of fibre optics, with a multitude of different applications spanning many areas of science.
Extruded SF6 glass ("holey") fiber for producing a super-continuum out to 2300nm.
[1] P. St.J. Russell, Science 299, 358 (2003).
[2] P. St.J. Russell, Journal of Lightwave Technology 24, 4729 (2006).
[3] P. St.J. Russell, Optics and Photonics News 18, 26 (2007).
[4] P. St.J. Russell, IEEE Lasers & Electro-Optics Society Newsletter 21, 11 (2007).
[5] M. S. Kang et al., submitted to Nature Physics (2008).
[6] H. W. Lee et al., Applied Physics Letters 93, 111102 (2008).

Bio: Dr. Philip Russell is Director of the Max-Planck Research Group for Optics, Information & Photonics at the University of Erlangen, Germany. In January 2009 he will become a founding Director of the new Erlangen-based Max-Planck Institute for the Science of Light. From 1996 to 2005 he founded and led the Photonics & Photonic Materials Group at the University of Bath. He specializes in periodic structures, nonlinear optics, waveguides and their applications. A Fellow and Director-At-Large of the Optical Society of America, in 2000 he won its Joseph Fraunhofer Award/Robert M. Burley Prize for the invention of photonic crystal fibre. In 2005 he was elected Fellow of the Royal Society and received the Thomas Young Prize of the UK Institute of Physics and the Körber Prize for European Science.

October 17, 2008: "Field Trip to CSM Planetarium: Planetarium show and observing party at College of San Mateo"


Professor Darryl Stanford will show a night sky show in the nearby Planetarium. This will include stars and planets, with discussion of the deep sky objects, followed by an all dome video called "Black Holes". CSM has established America's first HYBRID planetarium and the world's first CHRONOS HYBRID planetarium in their 40 foot planetarium dome. The system consists of the GOTO CHRONOS opto-mechanical space simulator from GOTO Optical Mfg. Co. (Japan) and the Digistar 3 SP2 HD projector from Evans & Sutherland.

The CHRONOS will show over 8000 stars to about 6th magnitude, 26 deep sky objects and the Milky Way! The D3 projectors, in conjunction with Spitz ATM4, will present all-dome, surround IMAX-like sound videos, intimate planet fly-bys and Messier objects. There will also be a short Power Point presentation on CCD astrophotography and the use of CCDStack software to produce sharp images from a series of short exposures, needed to overcome light pollution in an urban environment, and enhance faint detail.

Following the planetarium show, we'll go up to the observatory (weather permitting), for some live digital CCD imaging through the 20" RCOS telescope, as well as some observing through CSM's 140mm refracting telescope.

October 7, 2008: "Real-time THz Imaging using Uncooled Microbolometer Camera and Quantum Cascade Laser" by Prof. Gamani Karunasiri, Naval Postgraduate School


Owing to its unique spectral characteristics, radiation in the 0.3-10 terahertz (THz) spectral range has drawn attention as a new and potentially powerful medium for next-generation imaging technology. Terahertz wavelengths are sufficiently short to provide sub-millimeter resolution capability, yet are also sufficiently long to penetrate most non-metallic materials. Currently, most terahertz imaging systems are based on either antenna-coupled semiconductor detectors or cryogenically-cooled bolometers operating in the relatively slow scan mode. In this presentation, real-time imaging in the terahertz spectral range using an uncooled microbolometer camera and a quantum cascade laser (QCL) will be discussed.

Bio: Gamani Karunasiri is a Professor of Physics at the Naval Postgraduate School in Monterey, California since 2000. He received his B.S. (1979) degree in Physics from the University of Colombo, Sri Lanka, M.S. (1981) and Ph.D. (1984) degrees in Physics from the University of Pittsburgh. He was a research scientist at Microtronics Associates (1985-1986) and was an assistant research engineer at University of California at Los Angeles (1987-1993). From 1994-2000, he was a faculty member of the Department of Electrical Engineering at the National University of Singapore where he developed a microbolometer based infrared camera. He is the author of over 85 journal publications and holds three patents. Professor Karunasiri's current research interests are in quantum well infrared detectors, MEMS-based directional sound sensors and THz imaging.

September 18, 2008: "Recent Developments in Large Arrays of Microcavity Plasma Devices: Physics and Applications" by Prof. J. Gary Eden, University of Illinois at Urbana-Champaign

Abstract: Microcavity plasma devices are a new class of hybrid plasma/optoelectronic device in which a non-equilibrium low temperature plasma is spatially confined to a microcavity with a characteristic cross-sectional dimension of nominally 10-200 µm. Plasmas so confined are stable glows having nanoliter volumes and operating at gas pressures up to and beyond one atmosphere. Conventional mass production techniques can be used to fabricate arrays of microplasma devices having precisely-controlled microcavity dimensions and dielectric structures, thereby tailoring the electric field within the microcavity. Arrays of microcavity plasma devices have been demonstrated in a wide range of materials and device structures including Si, glass, and ceramics, but this presentation will focus on recent results in our laboratory in which arrays having active areas >200 cm2 have been realized with Al2O3/Al multilayer structures and plastic-based devices. Both are flexible and the latter are fully transparent. Furthermore, plasma channels having widths of 20 µm and aspect ratios >104:1 have been demonstrated. The performance of these arrays and selected applications in lighting, displays, and biomedical phototherapeutics will be discussed.

Bio: J. Gary Eden received the Ph.D. degree in Electrical Engineering from the University of Illinois, Urbana, in 1976 and was appointed a National Research Council Postdoctoral Research Associate at the U.S. Naval Research Laboratory (Washington, DC). As a research physicist in the Laser Physics Branch (Optical Sciences Division) of NRL from 1976 to 1979, he made several contributions to the area of visible and ultraviolet lasers and laser spectroscopy, including the co-discovery of the KrCl rare gas-halide excimer laser, and received a Research Publication Award (1979) for his work at NRL in which he co-discovered the proton beam pumped laser (Ar-N2, XeF). Since joining the faculty of the University of Illinois in 1979, he has been engaged in research in atomic, molecular and ultrafast laser spectroscopy, the discovery and development of visible and ultraviolet lasers, and the development of photochemical vapor deposition. He has served as Assistant Dean in the College of Engineering, Associate Dean of the Graduate College, and Associate Vice-Chancellor for Research, and is currently Professor in the Department of Electrical and Computer Engineering and Director of the Laboratory for Optical Physics and Engineering, as well as Research Professor in the Coordinated Science Laboratory, and the Micro and Nanotechnology Laboratory. Dr. Eden has over 200 publications and 22 patents, is a member of four honorary organizations, and is a Fellow of the IEEE, the Optical Society of America, and the American Physical Society. He has served as Editor-in-Chief of the IEEE Journal of Quantum Electronics and, in 1998, as President of the IEEE Lasers and Electro-Optics Society (LEOS). Previously, he served as a member of the LEOS Board of Governors, and as the Vice-President for Technical Affairs. Dr. Eden received the LEOS Distinguished Service Award, was awarded the IEEE Third Millennium medal in 2000 and was named a LEOS Distinguished Lecturer for 2003-2005. From 1996 through 1999, he was the James F. Towey University Scholar at the University of Illinois. In 2005, he received the IEEE/LEOS Aron Kressel Award. Recently he was awarded the C.E.K. Mees Medal of the Optical Society of America, and was also named the recipient of the Fulbright-Israel Distinguished Chair in the Natural Sciences and Engineering for 2007-2008.

August 5, 2008: "Photonic Crystal Devices" by Prof. John O'Brien, University of Southern California


Two-dimensional photonic crystal devices take advantage of our ability to pattern the dielectric, through nanofabrication techniques, on a scale that is shorter than the optical wavelength at which the device operates. Patterning on this length scale allows us, in principle, to engineer the electromagnetic properties of photonic devices in microscopic detail. It is a serious challenge, however, to understand how to utilize this freedom to improve device performance, and this photonic crystal device technology is still relatively immature. Nevertheless, a great deal of progress in photonic crystal device development has been made in the past few years.

In this presentation Prof. O'Brien will discuss photonic crystal lasers with particular emphasis on devices capable of room temperature CW operation and devices with quantum dot active regions. CW lasers have -3dB modulation bandwidths over 10 GHz with approximately 30dB of side mode suppression. The photonic crystal lasers with quantum dot active regions have absorbed powers at threshold of under 15 microwatts. The presentation will also describe approaches to increasing the output power obtained from these lasers illustrated with data showing 100 microwatts of pulsed output power from a microcavity photonic crystal laser.

The presentation will also address device issues associated with passive photonic crystal components such as optical loss, waveguide dispersion, and the design of waveguide junctions. Demonstrations of Mach-Zehnder interferometers and directional couplers will be presented and again results from experiments will be compared to numerical predictions.

Bio: Prof. John O'Brien received the B.S. degree from Iowa State University in electrical engineering in 1991 and the M.S. and Ph. D. degrees in applied physics from the California Institute of Technology in 1993 and 1996, respectively.

In 1997 he joined the Department of Electrical Engineering at the University of Southern California as an Assistant Professor. In 1999 he received the Presidential Early Career Award for Scientists and Engineers, and in 2000 he was awarded an NSF Career award. In 2003 he became an Associate Professor, and he was promoted to Professor of Electrical Engineering in 2006. His research interests are in nanophotonics and photonic crystal devices.

Dr. O'Brien is a senior member of IEEE and a Fellow of the Optical Society of America. He is currently an Associate Editor of IEEE Transaction on Nanotechnology. He has served on the Conference on Lasers and Electro-Optics (CLEO) Subcommittee on Optical Materials, Fabrication and Characterization from 2003-2005, the Integrated Photonics Research (IPR) Subcommittee on Nanophotonics for 2004, 2005, the Technical Program Committee for the Device Research Conference for 2004, 2005, the Technical Program Committee for the Information Photonics Conference for 2005, and the Semiconductor Laser Committee for the IEEE Lasers and Electro-Optics Society (LEOS) annual meeting for 1998-2002, 2005-2007. He also served as the organizer and chair of the Photonic Lattices sessions at the 2000 and 2002 Laser Workshops and was the Co-Organizer of the Photonic Crystals Sessions at the Electronic Materials Conference (EMC) for 2002. He has been elected as an IEEE LEOS Distinguished Lecturer for 2007-2008.

July 1, 2008: "Lasers in Medicine" by Stuart Mohr, Cutera, Inc.

Abstract: Lasers in medicine combine many aspects of science and engineering, including engineering design (ME, EE, CE, etc), laser physics, and biologic tissue interaction. Designing lasers to meet the needs of patients and practitioners requires an understanding of laser tissue interaction and close collaboration between engineering and clinicians. Many attributes of lasers, including wavelength pulse duration, spot size and fluence directly affect how laser light interacts with tissue. Understanding of each parameter along with the biology of the target structure allows laser manufacturers to develop new and innovative ways to treat patients with improved efficacy and reduced risks. This presentation provides an overview of laser and tissue interaction, including clinical and engineering validations to illustrate the process and science behind the development of medical lasers.

Bio: Stuart Mohr received dual degrees in Biomedical Engineering and Electrical Engineering from Vanderbilt University and his MBA from the University of California at Berkeley. Stuart has design experience in both dermatologic and ophthalmic laser systems including lasers for hair removal, vascular and pigmented lesions, laser resurfacing, glaucoma, and diabetic retinopathy. Currently, he is the Manager of Technical Marketing at Cutera, working with Marketing, Engineering and Clinical Research to develop new aesthetic devices.

June 3, 2008: "Advanced Microscopy Techniques and Ultrafast Lasers: a Symbiotic Development" by Marco Arrigoni, Coherent, Inc.

Abstract: Starting with the invention of Multi-Photon Excitation (MPE) Microscopy in 1991, Ultrafast lasers entered biological imaging and research laboratories. The short duration and high peak power of the infrared pulses of light generated by these lasers allowed to image cellular structures and tissues more in depth than any other non-invasive microscopy techniques, and on living (and surviving) animals. In the last decade, other Non-Linear Optics Microscopy techniques using Ultrafast lasers have been developed like Harmonic and CARS Microscopy. Each of these brings its original contribution to providing in-vivo information-rich images of animal and human subjects as well. The development of these novel microscopy techniques is further enabled by each new generation of Ultrafast lasers and, in turn, drives the industry to develop new, dedicated laser sources.

Bio: After obtaining a Masters Degree in Engineering at Politecnico of Milan, Italy, Marco Arrigoni worked as R&D engineer with Italian defense contractors, developing solid-state laser rangefinders and one of the first European diode-pumped lasers, in 1987. In 1988, he joined Coherent Inc. as R&D Engineer, designing ion lasers systems. In 1995 he moved to international sales and from 1998 to 2000 he managed Coherent's business in Asia, living in Tokyo. After moving back to the United States in 2001, he covered several positions in international marketing and sales. He is currently director of marketing for the scientific market segment. To strike a balance between his technical career and his passion for the old world, he collects roman coins and art, and is fond of classical and jazz music.

May 20, 2008: Full Day Symposium co-sponsored by SCV LEOS "Nanotech: Driver of Electronics, Photonics, Energy, and Bio-Med"

May 6, 2008: "Photovoltaics - Challenges and Opportunities in Materials, Machines and Manufacturing" by Dr. K.V. Ravi, Applied Materials


The photovoltaics industry and markets have been growing at a very high rate in the last few years. Shipments grew by an extraordinary 56% in 2007, and the five-year compound annual growth rate for the industry from 2002 to 2007 has been 44% with the industry capacity increasing by 69% in 2007. In this presentation the current status of photovoltaic technology and markets will be discussed. Benchmarking with the semiconductor (integrated circuit) industry will be discussed to determine what aspects of semiconductor technology and manufacturing practices could be profitably copied by the photovoltaic industry. Future directions of the technology, with specific focus on silicon based products and the challenges and opportunities in scale manufacture, efficiency enhancements and cost reductions will be discussed.

Bio: Dr. Ravi is responsible for Business Development for the Solar Business Group at Applied Materials. Prior to Applied Materials he was with Intel Corporation for over 10 years working primarily in the Materials Organization where his responsibilities have included the development of new silicon in support of Intel process technologies, developing low cost approaches for manufacturing silicon and the development of advanced substrates for future technologies. He has also worked in the Photovoltaics field for over 13 years at Mobil Solar Energy Corporation, leading the development of silicon ribbon based technologies. Ravi's other prior affiliations include Lockheed-Martin Corporation, Crystallume, Motorola Inc. and Texas Instruments Inc. He is the author of over 100 technical publications in the fields of metals, semiconductors, photovoltaics and CVD diamond technology and the author of the book "Imperfections and Impurities in Semiconductor Silicon". He has a Ph.D in Materials Science from Case Western University, an M.S. in Materials Science from the University of California, Berkeley, a B.S in Metallurgy from the Indian Institute of Science and a B.Sc in Chemistry from the University of Madras, India.

March 4, 2008: "CW Visible Lasers Based on Telecom Technology" by Dr. Len Marabella, JDS Uniphase

Abstract: In "standard" diode pumped solid state lasers designs, a large number of optical components like a pump laser diode, a laser crystal, mirrors, lenses, wavelength selective elements and a non-linear crystal have to be mounted to an optical base plate, which has to be mounted to a relatively large TEC to guaranty long term stability and proper operation. Combining JDSU's industry unique telecom and optics expertise in single-mode laser diodes, packaging and fiber coupling of single-mode structures and optical coatings together with periodically-poled non-linear crystals enables a new design for visible CWSS lasers based on JDSU's Frequency Converted Diode (FCD) technology.

Bio: Dr. Leonard Marabella is a Director of Product Marketing for JDSU, and is responsible for Q-switched ultraviolet lasers, CW visible lasers, fiber lasers, and gas lasers. Dr. Marabella received his Ph.D. in Chemical Physics from Indiana University in 1972. After being a postdoctoral research associate at MIT for two years, he was an Assistant Professor of Chemistry at Boston College for a year. He then worked at Hughes Aircraft from 1974-1981, primarily focusing on the development of chemical lasers. From 1981-2002, he worked at TRW, and his work included development of tunable semiconductor and ultraviolet lasers, as well as a wide range of R&D projects on electro-optic and photonic devices. Since 2002, he has worked for JDSU, primarily working on industrial lasers including diode-pumped solid state and fiber lasers. Dr. Marabella has been a board member of the Laser and Electro-optics Manufacturers' Association for the last 10 years, and was a board member of the Laser Institute of America from 1996-1998. He also was president of the South Bay Chamber Music Society from 1997-2002.

January 16, 2008: Joint meeting with SCV-CPMT "Flexible/Printable Electronics" by Dr. Chuck Bauer, TechLead Co & "Organic LED (OLED) Display Technology" by Dr. Johann Trujillo, DuPont Displays

Flexible/Printable Electronics: The printed electronics market comprises next-generation light, power and circuitry products, including flexible displays, plastic solar cells and organic RFID tags. Special inks enable the formation of active electrical layers -- the key drivers for printed electronics. The printed electronics market comprises next-generation light, power and circuitry products, including flexible displays, plastic solar cells and organic RFID tags. The market for printed electronics was approximately $1 billion in 2006 and is expected to exceed $300 billion within 20 years.

Organic LED (OLED) Display Technology: This talk will discuss a unique manufacturing process utilizing solution processing of small molecule materials for OLED displays and a material set including DuPont? HIL hole injection layer and DuPont light emitting and charge transport materials — the essential materials used to make an OLED display.

The OLED displays industry is under constant pressure to reduce manufacturing costs in order to compete with LCDs, This process should have the ability to overcome the cost barriers the industry has been facing.

We have measured accelerated lifetimes of the three primary colors that could translate in a display to 20,000 hours of white lifetime (which is extended by as much as 5 times when showing video) at a normal viewing brightness (200 cd/m2). At 1,000 cd/m2 — the standard test luminance used in the industry — the DuPont materials have lifetimes (T50) of 14,000 hours for blue with CIE 1931 color coordinates of (0.14, 0.16), 230,000 hours for green with color coordinates of (0.29, 0.65), and 46,000 hours for red with color coordinates of (0.66, 0.34). In a review of widely available reports, these are the longest measured lifetimes for a solution material set with equivalent color coordinates.

The OLED materials are printed onto active-matrix thin-film transistor (TFT) backplanes supplied by leading TFT providers, and then protected from environmental degradation with encapsulation technology.

Bio: Charles E. Bauer, Ph.D. serves as Senior Managing Director of TechLead Corporation, a technology management company specializing in the electronics packaging, interconnection and assembly industry. Dr. Bauer focuses in the areas of strategic technology planning, market analysis and business development, primarily in the international arena. With more than 20 years' experience spanning the range from printed circuit board and hybrid fabrication through complex IC metallization, multilayer packaging, multichip modules (MCMs) and flat panel display packaging and assembly, he brings tremendous breadth and depth to his work. Dr. Bauer lectures throughout the world on technology, business and market topics as well as serving on several corporate boards and international corporate, government and educational institution advisory councils.

Chuck served ISHM as President of the NW Chapter, Technical Chair of the ISHM National Symposium in Seattle, National Technical Vice President of the Society and President of the Rocky Mountain Chapter. He founded the ISHM/IMAPS Advanced Technology Workshop program and served as General or Technical chair for several ATWs between 1990 and 1998. Dr. Bauer also served on the Board of Directors of the SMTA from 1997 through 2001 when elected President of IMAPS for 2001-2002. He now serves as Chair of the SMTA International Development Committee and remains active internationally with the SMTA, IEEE, IMAPS, JIEP and ASM.

Johann Trujillo is manager of the test engineering group of DuPont Displays, a subsidiary of DuPont based in Santa Barbara, Calif. He has held this role since 2001, developing test systems as well as providing failure analysis and performance testing capabilities. Prior to joining DuPont Displays, Dr. Trujillo worked at Motorola where he developed field emission displays.

Dr. Trujillo received his bachelor's degree in chemical engineering at New Mexico State University and his masters and doctorate degrees in electrical engineering from University of California, Davis.