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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 28 — Oct. 1, 2006
  • pp: 7224–7234

Statistical adaptive sensing by detectors with spectrally overlapping bands

Ünal Sakoğlu, Majeed M. Hayat, J. Scott Tyo, Philip Dowd, Senthil Annamalai, Kalyan T. Posani, and Sanjay Krishna  »View Author Affiliations


Applied Optics, Vol. 45, Issue 28, pp. 7224-7234 (2006)
http://dx.doi.org/10.1364/AO.45.007224


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Abstract

It has recently been reported that by using a spectral-tuning algorithm, the photocurrents of multiple detectors with spectrally overlapping responsivities can be optimally combined to synthesize, within certain limits, the response of a detector with an arbitrary responsivity. However, it is known that the presence of noise in the photocurrent can degrade the performance of this algorithm significantly, depending on the choice of the responsivity spectrum to be synthesized. We generalize this algorithm to accommodate noise. The results are applied to quantum-dot mid-infrared detectors with bias-dependent spectral responses. Simulation and experiment are used to show the ability of the algorithm to reduce the adverse effect of noise on its spectral-tuning capability.

© 2006 Optical Society of America

OCIS Codes
(020.6580) Atomic and molecular physics : Stark effect
(040.0040) Detectors : Detectors
(040.3060) Detectors : Infrared
(040.5570) Detectors : Quantum detectors
(160.6000) Materials : Semiconductor materials
(280.0280) Remote sensing and sensors : Remote sensing and sensors

ToC Category:
Holography

History
Original Manuscript: January 13, 2006
Revised Manuscript: May 17, 2006
Manuscript Accepted: May 17, 2006

Citation
Ünal Sakoglu, Majeed M. Hayat, J. Scott Tyo, Philip Dowd, Senthil Annamalai, Kalyan T. Posani, and Sanjay Krishna, "Statistical adaptive sensing by detectors with spectrally overlapping bands," Appl. Opt. 45, 7224-7234 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-28-7224

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