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White-light imaging by use of a multiple passband acousto-optic tunable filter.

Authors
  • Suhre, D R
  • Theodore, J G
Type
Published Article
Journal
Applied optics
Publication Date
Aug 01, 1996
Volume
35
Issue
22
Pages
4494–4501
Identifiers
DOI: 10.1364/AO.35.004494
PMID: 21102865
Source
Medline
License
Unknown

Abstract

White-light imaging was accomplished by operation of a TeO(2) acousto-optic tunable filter (AOTF) with 40 simultaneous overlapping passbands from 400 to 700 nm. The AOTF was chromatically compensated by a wedge applied to the output surface of the AOTF, and the measured spatial resolution correlated well with predictions. Switching off specific rf's applied to the AOTF produced optical rejection corresponding to the inactive passbands. A rejection ratio of 30 dB was demonstrated, and the rejection level was found to be controlled by leakage through the sidelobes of adjacent passbands.

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