Effect of optical phonons on the spectral shape of terahertz quantum-well photodetectors

被引：6
|
作者：
Cao, J. C. [1 ]
Chen, Y. L.
Liu, H. C.
机构：
[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Beijing 100864, Peoples R China
[2] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2006年 / 40卷 / 02期
基金：
中国国家自然科学基金;
关键词：
terahertz; absorption coefficient; quantum-well photodetectors; optical phonons;
D O I：
10.1016/j.spmi.2006.06.001
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We calculate the spectral response of a terahertz (THz) quantum-well photodetector designed for 7 THz detection peak frequency. We incorporate the effect of GaAs optical phonons which give rise to a strong absorption in the region of 34-36 meV and result in an increase in reflection due to the large refractive index (n) change around this region. Comparing the calculated spectral shape with experiments, we show the improvement over the standard expressions. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：119 / 124
页数：6
相关论文
共 50 条
  • [1] Terahertz quantum-well photodetectors
    Liu, HC
    Song, CY
    SpringThorpe, AJ
    Cao, JC
    INFRARED PHYSICS & TECHNOLOGY, 2005, 47 (1-2) : 169 - 174
  • [2] Terahertz Imaging With Quantum-Well Photodetectors
    Zhou, T.
    Zhang, R.
    Guo, X. G.
    Tan, Z. Y.
    Chen, Z.
    Cao, J. C.
    Liu, H. C.
    IEEE PHOTONICS TECHNOLOGY LETTERS, 2012, 24 (13) : 1109 - 1111
  • [3] Performance of Terahertz quantum-well photodetectors
    Jia, Jingyue
    Zhang, Yueheng
    2015 40TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ), 2015,
  • [4] Design of Terahertz Quantum-Well Photodetectors
    Guo, X. G.
    Cao, J. C.
    Liu, H. C.
    2012 12TH INTERNATIONAL CONFERENCE ON NUMERICAL SIMULATION OF OPTOELECTRONIC DEVICES (NUSOD), 2012, : 9 - +
  • [5] Optical-phonon-mediated photocurrent in terahertz quantum-well photodetectors
    Gu, L. L.
    Guo, X. G.
    Fu, Z. L.
    Wan, W. J.
    Zhang, R.
    Tan, Z. Y.
    Cao, J. C.
    APPLIED PHYSICS LETTERS, 2015, 106 (11)
  • [6] Simulation of photocurrents of terahertz quantum-well photodetectors
    Xiong Feng
    Guo Xu-Guang
    Cao Jun-Cheng
    CHINESE PHYSICS LETTERS, 2008, 25 (05) : 1895 - 1897
  • [7] Recent Progress in Terahertz Quantum-Well Photodetectors
    Guo, X. G.
    Cao, J. C.
    Zhang, R.
    Tan, Z. Y.
    Liu, H. C.
    IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2013, 19 (01) : 169 - 176
  • [8] Study on the performance and optimization of terahertz quantum-well photodetectors
    Gao Ji-Hong
    Jia Jing-Yue
    Zhang Yue-Heng
    Shen Wen-Zhong
    JOURNAL OF INFRARED AND MILLIMETER WAVES, 2015, 34 (06) : 731 - 736
  • [9] Dark current mechanism of terahertz quantum-well photodetectors
    Jia, J. Y.
    Gao, H.
    Hao, M. R.
    Wang, T. M.
    Shen, W. Z.
    Zhang, Y. H.
    Cao, J. C.
    Guo, X. G.
    Schneider, H.
    JOURNAL OF APPLIED PHYSICS, 2014, 116 (15)
  • [10] Terahertz quantum-well photodetectors: Design, performance, and improvements
    Zhang, S.
    Wang, T. M.
    Hao, M. R.
    Yang, Y.
    Zhang, Y. H.
    Shen, W. Z.
    Liu, H. C.
    JOURNAL OF APPLIED PHYSICS, 2013, 114 (19)
12345