Corrugated quantum well infrared photodetectors

  title={Corrugated quantum well infrared photodetectors},
  author={C. Chen and K. K. Choi and D. Tsui},
  journal={International Electron Devices Meeting. Technical Digest},
We introduce here a novel light coupling scheme for quantum well infrared photodetectors (QWIPs). The new device structure utilizing this coupling scheme, referred to as the corrugated QWIP (C-QWIP), couples normal incident light effectively even for detector size as small as 50/spl times/50 /spl mu/m/sup 2/ and shows little spectrum narrowing effect, indicating that it can be applied to the manufacturing of high resolution focal plane arrays and is a viable candidate for multi-color or… CONTINUE READING