Resonant structures for infrared detection.

@article{Choi2017ResonantSF,
  title={Resonant structures for infrared detection.},
  author={Kwong Kit Choi and Shane C. Allen and J. G. Sun and Yanfeng Wei and Kimberley Anderson Olver and Ru Xuan Fu},
  journal={Applied optics},
  year={2017},
  volume={56 3},
  pages={B26-B36}
}
We are developing resonator-quantum well infrared photodetectors (R-QWIPs) for long-wavelength applications. Detector pixels with 25 μm pitch were hybridized to fan-out circuits for radiometric measurements. With a moderate doping of 0.5×1018  cm-3, we achieved a quantum efficiency (QE) of 37% and conversion efficiency (CE) of 15% in a 1.3 μm thick active material and 35% QE and 21% CE in a 0.6 μm thick active material. Both detectors are cutoff at 10.5 μm with a 2 μm bandwidth. The temperature… CONTINUE READING

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