• DocumentCode
    2513610
  • Title

    Modeling and ATLAS simulation of Hg Cd Te based MWIR photo detector for free space optical communication

  • Author

    Dwivedi, A.D.D. ; Chakrabarti, P.

  • Author_Institution
    Dept. of Electron. Eng., Banaras Hindu Univ., Varanasi
  • fYear
    2008
  • fDate
    21-24 Nov. 2008
  • Firstpage
    412
  • Lastpage
    415
  • Abstract
    In this paper we report a theoretically simulated Hg1-xCdxTe based heterojunction medium wavelength infrared (MWIR) photodetector for operation at temperature 78 K. The detector is designed to operate at strategic atmospheric window in the MWIR (3.8 mum) region with a high value of detectivity (>108 mHz1/2W-1) and quantum efficiency (~ 60%). The device has been modeled using closed form analytical formula and is also simulated using the device simulation software ATLAS from SILVACOreg international. The device has been theoretically characterized using the above models in respect of energy band diagram, electric field profile, current voltage characteristics, spectral response, quantum efficiency and detectivity. The detector is expected to find application in free space optical communication at 3.8 mum.
  • Keywords
    II-VI semiconductors; cadmium compounds; infrared detectors; mercury compounds; optical receivers; photodetectors; semiconductor heterojunctions; ATLAS simulation software; Hg1-xCdxTe; MWIR photodetector; SILVACO international; atmospheric window; current voltage characteristics; device detectivity; electric field profile; energy band diagram; free space optical communication; heterojunction medium wavelength infrared detector; quantum efficiency; spectral response; temperature 78 K; wavelength 3.8 mum; Analytical models; Atmospheric modeling; Heterojunctions; Infrared detectors; Mercury (metals); Optical fiber communication; Photodetectors; Quantum mechanics; Tellurium; Temperature; ATLAS Simulation; Free Space Optical Communication; Hg1−xCdxTe; MWIR; Modeling;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Recent Advances in Microwave Theory and Applications, 2008. MICROWAVE 2008. International Conference on
  • Conference_Location
    Jaipur
  • Print_ISBN
    978-1-4244-2690-4
  • Electronic_ISBN
    978-1-4244-2691-1
  • Type

    conf

  • DOI
    10.1109/AMTA.2008.4763197
  • Filename
    4763197
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2513610