MIOMD-XI Speakers    
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1.  Dr. Mani Sundaram, QmagiQ, LLC, USA
Invited Talk: Performance of infrared focal plane arrays made from Type-I quantum wells and Type-II superlattices
Speaker Biography: Dr. Sundaram is co-founder and CEO of QmagiQ, a company that develops, manufactures, and sells infrared focal plane arrays, sensor engines, and cameras based on Group III-V compound semiconductors. He received his B.Tech. from the Indian Institute of Technology Madras (India) and his MS and PhD from the University of California (Santa Barbara), all in Electrical & Computer Engg. He has worked at NASA-JPL, Lockheed-Martin, and TeraConnect. He was a Fellow of the Regents of the University of California (while a graduate student) and is a recipient of the NASA Award for Exceptional Technical Achievement. He has published extensively, holds several patents, and given some talks.

Summary: In the last few years infrared focal plane arrays based on Type-I GaAs/AlGaAs quantum well infrared photodetectors (QWIPs) have been commercialized, providing excellent cost-effective imaging for security and surveillance and gas imaging applications. A second cooled infrared sensor technology that has made significant advances in recent years are photodiodes based on Type-II InAs/(In)GaSb strained layer superlattices (SLS). Imaging chips with upto a million pixels, quantum efficiency exceeding 50%, and cutoff wavelength exceeding 10 microns have been recently demonstrated. SLS offers the promise of the high quantum efficiency and operating temperature of mercury cadmium telluride (MCT) at the price point of QWIP and midwave indium antimonide (InSb). That promise is rapidly being fulfilled. A further benefit of SLS is that with some clever bandgap engineering the device can be made to have dualband spectral response, e.g. in the midwave (3-5 micron) and longwave (8-12 micron) bands. Such dualband FPAs are a hot area of ongoing R&D. This talk will present the current state-of-the-art of both these sensor technologies at this critical stage of their evolution.
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