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System for driving 2D infrared emitter arrays at cryogenic temperatures
Professor, Electrical and Computer Engineering, University of Delaware
Recently there has been increased interest and development of semiconductor-based infrared (IR) LED-based emitter array devices (e.g. SLEDS), due to their ability to produce higher apparent temperatures, lower background temperatures, and much faster rise and fall times than thermal emission techniques. These devices flip-chip a large CMOS driver chip onto a two-dimensional array of IR emitter devices typically fabricated on a GaSb substrate. Several testing sessions showed the unique functionality and capabilities in several important areas such as: apparent temperature exceeding 1000 Kelvin, rise and fall time of 3-4 microseconds, and low apparent background temperatures.