中国物理B ›› 1995, Vol. 4 ›› Issue (11): 806-809.doi: 10.1088/1004-423X/4/11/002

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NORMAL-INCIDENCE QUANTUM WELL INFRARED PHOTODETECTOR WITHOUT GRATING COUPLER

王文新, 胡强, 黄绮, 周均铭, 崔大复, 陈正豪   

  1. Institute of Physics, Academia Sinica, Beijing 100080 , China
  • 收稿日期:1995-04-04 出版日期:1995-11-20 发布日期:1995-11-20

NORMAL-INCIDENCE QUANTUM WELL INFRARED PHOTODETECTOR WITHOUT GRATING COUPLER

WANG WEN-XIN (王文新), HU QIANG (胡强), HUANG QI (黄绮), ZHOU JUN-MING (周均铭), CUI DA-FU (崔大复), CHEN ZHENG-HAO (陈正豪)   

  1. Institute of Physics, Academia Sinica, Beijing 100080 , China
  • Received:1995-04-04 Online:1995-11-20 Published:1995-11-20

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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 Rv of 1.7×105V/W and a detectivity Dλ* of 4.0×1010 cm (Hz)1/2/W for a wavelength of 8.4 μm at a temperature T = 77 K in normal incidence.

Abstract: The n-type GaAs/AlxGa1-xAs multiple quantum well infrared photodetectors have been demonstrated without any grating couplers. We have achieved a responsivity Rv of 1.7×105V/W and a detectivity D$\lambda$* of 4.0×1010 cm (Hz)1/2/W for a wavelength of 8.4 μm at a temperature T = 77 K in normal incidence.

中图分类号:  (Quantum well devices (quantum dots, quantum wires, etc.))

  • 85.35.Be
85.60.Gz (Photodetectors (including infrared and CCD detectors)) 42.79.Dj (Gratings) 42.79.Gn (Optical waveguides and couplers) 73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)) 78.67.De (Quantum wells)