NORMAL-INCIDENCE QUANTUM-WELL INFRARED PHOTODETECTOR WITHOUT GRATING COUPLER

Wang Wen-xin,Hu Qiang,Huang Qi,Zhou Jun-ming,Cui Da-fu,Chen Zheng-hao,WX WANG,Q HU,Q HUANG,JM ZHOU,DF CUI,ZH CHEN

ACTA PHYSICA SINICA-OVERSEAS EDITION（1995）

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摘要

The n-type GaAs/AlxGa1-xAs multiple quantum well infrared photodetectors have been demonstrated without any grating couplers. We have achieved a responsivity R(v) of 1.7 x 10(5) V/W and a detectivity D-lambda* of 4.0 x10(10) cm root Hz/W for a wavelength of 8.4 mu m at a temperature T=77K in normal incidence.

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infrared

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