128×1元GaAs/AlGaAs多量子阱扫描型红外焦平面的红外成像

INFRARED IMAGING BY 128×1 GaAs/AlGaAs MQW INFRARED FPAs

研制成功了１２８×１元ＧａＡｓ／ＡｌＧａＡｓ多量子阱扫描型红外焦平面（ＦＰＡｓ），器件的响应率达到ＲＰ＝２．０２×１０６Ｖ／Ｗ，截止波长为λｃ＝８．６μｍ．根据常规的黑体探测率定义，得到器件的黑体探测率为Ｄｂ＊＝２．３７×１０９ｃｍ·Ｈｚ１／２／Ｗ，并最终获得了清晰的室温物体残留热像图．

A scanning infrared FPA of 128×1 multiple quantum wells(MQW) was developed. Responsivity R P =2.02×10 6V/W was obtained with the cut off wavelength λ c =8.6 μm. By the typical blackbody detectivity definition, the detectivity is D b *=2.37×10 9cm·Hz 1/2 /W. Finally, a distinguished remnant thermal image of a room temperature body was obtained.