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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 1 — Jan. 3, 2011

Study of grating performance for quantum well photodetectors

Jian Wang, Xiaoshuang Chen, Zhifeng Li, and Wei Lu  »View Author Affiliations


JOSA B, Vol. 27, Issue 11, pp. 2428-2432 (2010)
http://dx.doi.org/10.1364/JOSAB.27.002428


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Abstract

The performance of reflective grating plays a key role in quantum well infrared focal plane arrays due to the selection rules of inter-subband transition. In this paper, the reflective properties of metal grating have been studied by the finite-difference time-domain methods. Not only are the optimal grating parameters found to be different from the suggested values, but also a new choice for grating design has been found due to the exciting of surface wave. In addition, cavity modes can be formed when the dielectric thickness is finite. The grating performance is also greatly affected by the cavity modes. The presented results may have some significance for experimental design.

© 2010 Optical Society of America

OCIS Codes
(040.3060) Detectors : Infrared
(040.4200) Detectors : Multiple quantum well
(040.5160) Detectors : Photodetectors
(050.1950) Diffraction and gratings : Diffraction gratings
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Detectors

History
Original Manuscript: July 22, 2010
Revised Manuscript: September 7, 2010
Manuscript Accepted: September 18, 2010
Published: October 27, 2010

Virtual Issues
Vol. 6, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Jian Wang, Xiaoshuang Chen, Zhifeng Li, and Wei Lu, "Study of grating performance for quantum well photodetectors," J. Opt. Soc. Am. B 27, 2428-2432 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josab-27-11-2428


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