Focal plane arrays based on quantum dot infrared photodetectors

  title={Focal plane arrays based on quantum dot infrared photodetectors},
  author={Manijeh Razeghi and Wei Zhang and Ho Chul Lim and S. W. Tsao and John D. Szafraniec and Maho Taguchi and B. Movaghar},
  booktitle={SPIE Microtechnologies},
Here we report the first demonstrations of infrared focal plane array (FPA) based on GaAs and InP based quantum dot infrared photodetectors (QDIPs). QDIPs are extension of quantum well infrared photodetectors (QWIPs) and are predicted to outperform QWIPs due to their potential advantages including normally incident absorption, higher responsivity and high temperature operation. Two material systems have been studied: InGaAs/InGaP QDIPs on GaAs substrates and InAs QDIP on InP substrates. An… CONTINUE READING


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