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Optics Letters

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  • Vol. 30, Iss. 9 — May. 1, 2005
  • pp: 985–987

Hyperspectral imaging performance of a TeO2 acousto-optic tunable filter in the ultraviolet region

Neelam Gupta and Vitaly Voloshinov  »View Author Affiliations


Optics Letters, Vol. 30, Issue 9, pp. 985-987 (2005)
http://dx.doi.org/10.1364/OL.30.000985


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Abstract

A compact UV hyperspectral imager can be designed with an acousto-optic tunable filter (AOTF) installed in front of an enhanced CCD camera. Tellurium dioxide (TeO2) is the most commonly used crystal for AOTFs from 0.4 to 4 µm. We conducted an experiment to determine the UV spectral response of an imaging TeO2 AOTF in tandem with a known KDP AOTF and obtained good-quality hyperspectral images by using the TeO2 filter down to 365 nm. We compared the performance of the TeO2 filter-based hyperspectral imager with an imager based on a KDP filter because currently the latter is the best available material for the UV, and we found the performance of the TeO2 imager in the range 355-480 nm to be superior to that of a KDP imager. We present our experiments and the results obtained.

© 2005 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(120.2440) Instrumentation, measurement, and metrology : Filters
(260.7190) Physical optics : Ultraviolet

Citation
Neelam Gupta and Vitaly Voloshinov, "Hyperspectral imaging performance of a TeO2 acousto-optic tunable filter in the ultraviolet region," Opt. Lett. 30, 985-987 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-9-985


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References

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