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T1 - Optical Biomedical Sensors
Claire Gu,
University of California, Santa Cruz, USA
CP Wong
Avram Bar-Cohen, TherPES laboratory, Department of Mechanical Engineering, University of Maryland, USA
Chris Bachmann, TherPES laboratory, Department of Mechanical Engineering, University of Maryland, College Park, MD
T4 - Alternative portable power technologies for mobile devices
Farid Bensebaa, National Research Council of Canada
T5 - Design of Programmable Wireless Networks
Ramesh Harjani, Keshab Parhi, Ahmed H. Tewfik, and Gerald E. Sobelman
University of Minnesota, USA
T6 - Portable Displays Using Transflective LCDs and OLEDs
Shin-Tson Wu, University of Central Florida, USA
Sunday, 25 March - 10:00 - 12:00
T1 - Optical Biomedical Sensors
Claire Gu,
University of California, Santa Cruz, USA
Early diagnostics of diseases is the key to treatment, cure, and fatality prevention. Various biomedical sensors are available or being developed to achieve early disease diagnostics with non-invasive or minimally invasive techniques, such as magnetic resonance imaging (MRI), ultrasonic imaging, X-ray imaging, CT scan, optical coherent tomography (OCT), endoscopy, microscopy, spectroscopy, etc. Among these techniques, optical technologies, including various microscopy and spectroscopy approaches, provide the possibility to observe a large range of objects, from organs, cells, to molecules, with fast (ideally real-time) response and high spatial and spectral resolutions. In addition, to make the diagnostic tests of diseases, such as cancers, more accessible to the general public it is important to provide easy early diagnostic tools packaged as portable information devices. Such early diagnostics portable information devices must be highly sensitive, disease specific, reliable, inexpensive, easy to fabricate, fast, and compact. This tutorial will provide an overview of various optical biomedical sensors, including both imaging and spectroscopic techniques, and introduce some recent developments in biomedical sensors, such as nanoparticle surface enhanced Raman scattering (SERS) and its application in compact molecular sensors. Specifically, the following topics will be discussed: interaction of light with tissues, cells, and molecules; bioimaging including optical microscopy, endoscopic imaging, fluorescence imaging, and optical tomography; spectroscopy including absorption spectroscopy, fluorescence spectroscopy, and Raman spectroscopy; optical fiber surface enhanced Raman probes for biomedical applications.
Biography
Claire Gu received her Ph.D. in Physics from Caltech in 1989. Then she worked as a member of the technical staff at Rockwell Science Center, and went to Penn State in 1992 as an assistant professor. In 1997, she came to UC Santa Cruz as the first Electrical Engineering faculty member, and is now a professor in EE. Her research interests include fiber optics, holographic data storage, liquid crystal displays, nonlinear optics, and optical information processing; with a current emphasis on fiber sensors using SERS (surface enhanced Raman scattering). She has published more than 180 journal and conference papers in these areas. In addition, she has co-authored a text/reference book on "Optics of Liquid Crystal Displays", and co-edited two technical books on photorefractive nonlinear optics and applications. She received a National Science Foundation Young Investigator Award in 1993. From 2000 to 2006, she served as a Topical Editor of Optics Letters. In 2007, she has been elected a Fellow of SPIE (The International Society of Optical Engineering).
Monday 26 March - 10:00 - 12:00
T4 - Alternative portable power technologies for mobile devices
Farid Bensebaa,
National Research Council of Canada Manufacturers of Portable Information Displays and Telecommunication (PDAs, mobile phones and computers) have identified power sources as their biggest challenge. Current battery technologies don't satisfy all the requirements of the next generation portable devices. The continuous operation, longer lifetime and short charge time are few properties that needed to be addressed.
Alternative portable power generation technologies based on new batteries technologies, fuel cell and solar cell are seriously pursued to replace batteries in some area. During this half-day course, the market and various novel technologies for portable power generation be described and assessed.
Biography
Farid Bensebaa is a project leader at the National Research Council of Canada since 1997. He is also an Adjunct Professor at the Department of Electrical Engineering of the University of Sherbrooke, Canada. Farid Bensebaa holds a PhD in Materials Science from the University of Montreal (Canada) and a Master in Organic conductors and devices from University of Strasbourg (France). He has also spent two years at the University of Houston with the Texas Center for Superconductivity. His main research areas include nanotechnolgy, photovoltaic material and devices, fuel cell, distributed power generation. He has published over 30 peer reviewed papers in international journals.
Monday 26 March - 13:30 - 15:30
T5 - Design of Programmable Wireless Networks
Ramesh Harjani, Keshab Parhi, Ahmed H. Tewfik, and Gerald E. Sobelman
University of Minnesota, USA,
The wide proliferation of wireless services and applications with increasing bandwidth needs is rapidly creating a spectrum shortage. However, the problem is caused primarily by inefficient legacy spectrum allocation policies, so that even when some applications suffer from lack of bandwidth, there is idle capacity in other bands. To deal with this challenge, the FCC, ITU and other regulatory organizations have begun to explore an open spectrum policy implemented by programmable wireless networks. Such wireless networks use cognitive, software reconfigurable radios to increase the efficiency of spectrum access. In particular such programmable wireless networks maximize the availability and enhance the quality of service of diverse applications using the most appropriate access network, or an aggregation of such networks, for any given local conditions. A software defined radio (SDR) terminal is essentially a reconfigurable system that can be dynamically programmed in software to reconfigure the characteristics of the hardware through the use of clearly defined APIs residing on top of a flexible hardware layer. The SDRs use different types of hardware to accomplish various communication tasks. In addition to the programmability and flexibility provided by the DSPs and software-driven communication parameters such as modulation, medium access, cryptography, etc, software defined radios also provide field service capability. So, when requirements change, code downloads, upgrades and modifications are relatively easy to execute. Ultimately, the success of the programmable wireless network vision will hinge on its ability to meet the high level needs of users, service providers, network operators and hardware and software developers. Ubiquitous access to applications with proper quality levels, low cost services, user friendliness, fast and open service creation, lifetime and flexibility of equipment, common execution environment, fast product design and manufacturing, to mention a few, translate into well defined technology requirements. In this tutorial we will discuss system, circuit and implementation issues necessary to design a programmable wireless network that meets these requirements.
Biographies
Ramesh Harjani received the Ph.D. degree from Carnegie Mellon University, the M.S. degree from the IIT Delhi and the B.S. degree from the BITS Pilani. He is Professor of Electrical & Computer Engineering the University of Minnesota, a Fellow of the IEEE and was a Distinguished Lecturer of the IEEE CAS Society.
He co-founded Bermai, a startup company developing CMOS wireless chips for multimedia applications. He received Best Paper Awards at the 1987 DAC, the 1989 ICCAD and the 1998 GOMAC. He was the winner of the Semiconductor Research Corporation Design Challenge in 2000 and 2003.
Keshab K. Parhi received his B.Tech., MSEE, and Ph.D. degrees from the Indian Institute of Technology, Kharagpur, the University of Pennsylvania, Philadelphia, and the University of California at Berkeley, in 1982, 1984, and 1988, respectively. He is currently Distinguished McKnight University Professor at the University of Minnesota. Dr. Parhi is the recipient of numerous awards including Fellow of IEEE, F.E. Terman award by the American Society of Engineering Education, IEEE Kiyo Tomiyasu Technical Field Award and IEEE W.R.G. Baker prize award.
Ahmed H. Tewfik received his B.Sc. degree from Cairo University, in 1982 and his M.Sc., E.E. and Sc.D. degrees from the Massachusetts Institute of Technology, Cambridge, MA, in 1984, 1985 and 1987 respectively. He co-founded Cognicity, Inc. He made a number of seminal contributions to statistical signal processing and wireless communications, including the leading proposal to the IEEE 802.15.3a standard. He is the recipient of several honors, including Fellow of the IEEE, IEEE third Millennium award, E. F. Johnson professorship of Electronic Communication & Distinguished Lecturer of the IEEE Signal Processing Society.
Gerald E. Sobelman received a B.S. in physics, from the University of California, LA in 1974 and M.A. and Ph.D. degrees in physics from Harvard University in 1976 and 1979, respectively. He has held positions at The Rockefeller University, Sperry Corporation and Control Data Corporations. He has been a faculty at the University of Minnesota since 1986. He has published over 80 research papers, is a co-author of one book and holds 10 U.S. patents. He has served as an Associate Editor for IEEE Signal Processing Letters.
Tuesday 27 March - 10:00 - 12:00
T6 - Portable Displays Using Transflective LCDs and OLEDs
Shin-Tson Wu, University of Central Florida, USA
TFT-LCDs have been used widely in notebook computers, desktop monitors and TVs. However, under sunlight ambient, the images of these transmissive LCDs could be washed out. To improve sunlight readability, transflective LCDs and organic light emitting displays (OLEDs) have been used as primary and secondary displays in cell phones. Other portable display devices, such as iPod and high-end notebook computers are also employing transflective LCDs. In this short course, we will describe the basic operating mechanisms of transflective LCDs and their key performance characteristics.
Meanwhile, we will introduce a tandem LCD/OLED device which exhibits a high ambient-contrast-ratio (A-CR) and large aperture ratio. Such a tandem device can be switched between the normal-black reflective LCD mode and the OLED mode under bright and dark ambient light, respectively. The normal-black characteristic of the reflective LCD also helps to boost the A-CR under OLED-mode operation.
Biography:
Shin-Tson Wu is a PREP professor at the College of Optics and Photonics, University of Central Florida. Prior to joining UCF in 2001, Dr. Wu worked at Hughes Research Laboratories (Malibu, California) for 18 years. He received his Ph.D. in Quantum Electronics from the University of Southern California (Los Angeles, California, USA) and his BS in physics from National Taiwan University (Taipei, Taiwan).
Dr. Wu is a Fellow of the IEEE, SID, OSA and SPIE. He is a recipient of the SID Special Recognition Award, SID Distinguished Paper Award, IEEE Outstanding Engineer Award, ERSO (Taiwan) Special Achievement Award, Hughes team achievement award, Hughes Research Labs outstanding paper award and UCF Distinguished Researcher Award.
Prof. Wu has co-authored 4 books: „Fundamentals of Liquid Crystal Devices‰ (Wiley-SID, 2006), „Introduction to Microdisplays‰ (Wiley-SID, 2006), „Reflective Liquid Crystal Displays‰ (Wiley, 2001), and „Optics and Nonlinear Optics of Liquid Crystals‰ (World Scientific, 1993), 5 book chapters, over 350 publications and 60 issued and pending patents. Prof. Wu is the founding Editor-In-Chief of the IEEE/OSA Journal of Display Technology.
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