中文

Journal of Applied Sciences ›› 1997, Vol. 15 ›› Issue (3): 279-284.

• Articles • Previous Articles     Next Articles

THE PHOTON ABSORPTION COEFFICIENT OF (HgCd) Te DETECTORS AND ITS EFFECT ON THE FRANZ-KELDYSH SHIFT OF CUTOFF WAVELENGTH

YE YUTANG, LI JlAXU, HONG YONGHE, LI ZHONGDONG, YE JING, SHU HAIHONG, LI ZHENGDONG   

  1. Department of Opto-electronic Technology, University of Electronic Science and Technology of China, Chengdu 610054
  • Received:1995-11-23 Revised:1996-05-19 Online:1997-09-30 Published:1997-09-30

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Abstract: The width of the depletion region d and the photon absorption coefficient a of the pn+ junction (HgCd) Te detectors are calculated. The equation about the relation among a, d and the effetive Franz-Keldysh shift △λce is derived. And an interpretation of tremendous difference between △λcm and △λce presented.

Key words: photon absorption coefficient, (HgCd) Te detectors, Franz-Keldysh effect