Polarization Sensitivity of Quantum Well Infrared Photodetector Coupled to a Metallic Diffraction Grid

Download
  1. (PDF, 965 KB)
  2. Get@NRC: Polarization Sensitivity of Quantum Well Infrared Photodetector Coupled to a Metallic Diffraction Grid (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1109/JQE.2010.2040461
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleIEEE Journal of Quantum Electronics
Volume46
Issue6
Pages877883; # of pages: 7
SubjectInfrared detectors; metal grid; polarization sensitive; quantum well
AbstractWe study experimentally and numerically the polarization sensitivity of quantum well infrared photodetectors coupled to a diffraction grid. The polarization extinction ratio of such system is determined by two factors: polarization sensitivity of the diffraction grid and the intrinsic polarization sensitivity of the photodetector itself. The combined effect of these factors result in nonmonotonic dependence of the polarization extinction ratio on the parameters of the diffraction grid. By varying the grid parameters, i.e., increasing the height and tuning the grid period, a maximum value for the polarization extinction ratio can be achieved. Both front side and back side illuminations of the photodetector are studied. The strongest polarization sensitivity is achieved under front side illumination.
Publication date
LanguageEnglish
AffiliationNRC Institute for Microstructural Sciences; National Research Council Canada
Peer reviewedYes
NPARC number17400992
Export citationExport as RIS
Report a correctionReport a correction
Record identifier8c2439bf-e8ba-4081-88c3-ecbba783d7a9
Record created2011-03-26
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)