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Applied Optics

Applied Optics


  • Vol. 43, Iss. 13 — May. 1, 2004
  • pp: 2752–2759

Hyperspectral imager, from ultraviolet to visible, with a KDP acousto-optic tunable filter

Neelam Gupta and Vitaly Voloshinov  »View Author Affiliations

Applied Optics, Vol. 43, Issue 13, pp. 2752-2759 (2004)

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Hyperspectral imaging in the ultraviolet to visible spectral region has applications in astronomy, biology, chemistry, medical sciences, etc. A novel electronically tunable, random-wavelength access, compact, no-moving-parts, vibration-insensitive, computer-controlled hyperspectral imager operating from 220 to 480 nm with a spectral resolution of 160 cm-1, e.g., 2 nm at 350 nm, has been developed by use of a KDP acousto-optic tunable filter (AOTF) with an enhanced CCD camera and a pair of crossed calcite Glan-Taylor polarizing prisms. The linear and angular apertures of the AOTF are 1.5 × 1.5 cm2 and 1.2°, respectively. Imager setup and spectral imaging results as well as analyses and discussion of various factors affecting image quality are presented.

© 2004 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.2970) Imaging systems : Image detection systems
(110.3000) Imaging systems : Image quality assessment
(230.1040) Optical devices : Acousto-optical devices
(260.7190) Physical optics : Ultraviolet

Original Manuscript: August 21, 2003
Revised Manuscript: January 22, 2004
Published: May 1, 2004

Neelam Gupta and Vitaly Voloshinov, "Hyperspectral imager, from ultraviolet to visible, with a KDP acousto-optic tunable filter," Appl. Opt. 43, 2752-2759 (2004)

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