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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 13 — May. 1, 2008
  • pp: 2430–2436

A sensitive, spatially uniform photodetector for broadband infrared spectrophotometry

Enrique J. Iglesias, Allan W. Smith, and Simon G. Kaplan  »View Author Affiliations


Applied Optics, Vol. 47, Issue 13, pp. 2430-2436 (2008)
http://dx.doi.org/10.1364/AO.47.002430


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Abstract

We describe the design and performance of a liquid helium-cooled As:Si blocked-impurity-band photodetector system intended for spectrophotometry in the thermal infrared (2 to 30 μm ) spectral region. The system has been characterized for spectral sensitivity, noise, thermal stability, and spatial uniformity, and optimized for use with a Fourier-transform infrared spectrophotometer source for absolute goniometric reflectance measurements. Its performance is evaluated and compared to more common detector systems used in this spectral region, including room-temperature pyroelectric and liquid- N 2 -cooled photoconductive devices.

© 2008 Optical Society of America

OCIS Codes
(040.3060) Detectors : Infrared
(040.5160) Detectors : Photodetectors
(120.1840) Instrumentation, measurement, and metrology : Densitometers, reflectometers

ToC Category:
Detectors

History
Original Manuscript: December 3, 2007
Revised Manuscript: March 7, 2008
Manuscript Accepted: March 10, 2008
Published: April 28, 2008

Citation
Enrique J. Iglesias, Allan W. Smith, and Simon G. Kaplan, "A sensitive, spatially uniform photodetector for broadband infrared spectrophotometry," Appl. Opt. 47, 2430-2436 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-13-2430

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