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Applied Optics

Applied Optics


  • Vol. 37, Iss. 12 — Apr. 20, 1998
  • pp: 2340–2345

Imaging spectroradiometer for the 8–12-μm region with a 3-cm-1 passband acousto-optic tunable filter

Dennis R. Suhre and Eliel Villa  »View Author Affiliations

Applied Optics, Vol. 37, Issue 12, pp. 2340-2345 (1998)

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An imaging spectroradiometer was built covering the 8–12-μm region with an acousto-optic tunable filter with a 3-cm-1 passband, along with a commercial infrared camera. The system field of view was 7.5° × 10°, and the resolution was nearly diffraction limited. Real-time images were digitally recorded, and software was used to enhance the data and increase the camera temperature sensitivity to less than a millidegree Kelvin. The minimum discernible intensity was 10-3 that of a globar source at 900 K, and emission from SF6 could be imaged at ambient temperatures.

© 1998 Optical Society of America

OCIS Codes
(110.3080) Imaging systems : Infrared imaging
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(160.1050) Materials : Acousto-optical materials
(230.1040) Optical devices : Acousto-optical devices
(300.1030) Spectroscopy : Absorption

Original Manuscript: August 12, 1997
Revised Manuscript: December 22, 1997
Published: April 20, 1998

Dennis R. Suhre and Eliel Villa, "Imaging spectroradiometer for the 8–12-μm region with a 3-cm-1 passband acousto-optic tunable filter," Appl. Opt. 37, 2340-2345 (1998)

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