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Prof. Gamani Karunasiri, Naval Postgraduate School
Real-time THz Imaging using Uncooled Microbolometer Camera and Quantum Cascade Laser
Abstract
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.
Biography
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.
Where
National Semiconductor Building E Auditorium
2900 Semiconductor Drive
Santa Clara,
CA 95051
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Hosted By
IEEE SCV Photonics
IEEE Santa Clara Valley Photonics Society
The Santa Clara Valley Chapter of the IEEE Photonics Society, previously known as IEEE Laser and Electro-Optics Society (LEOS), is interested in lasers, optical devices, optical fibers, and associated lightwave technology and their research, development, design, manufacture, and applications in systems and subsystems. The Society is also concerned with the various scientific and technological activities which contribute to the useful expansion of the field.
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