Design of a prism to compensate the angular-shift error of the Acousto-optic Tunable Filter

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The Acousto-Optic Tunable Filter (AOTF) is a high-speed full-field monochromator which generates two spectrally filtered light beams with ordinary and extraordinary polarization state. The angle of diffracted light in an AOTF changes according to the scanning of wavelength, which causes an image shift on a CCD plane. An analytic design of a prism system to compensate for the angular-shift error is proposed in this paper. Analysis of light paths in a prism and experimental results verify a proposed compensation method. Experimental results agreed with simulation results based on the suggested prism model. Angular-shift errors of ordinary and extraordinary rays are simultaneously minimized at optimal conditions with the designed prism. (C) 2008 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2008-10
Language
English
Article Type
Article
Keywords

THIN-FILM; SCANNING INTERFEROMETRY; THICKNESS-PROFILE

Citation

OPTICS EXPRESS, v.16, no.22, pp.17138 - 17147

ISSN
1094-4087
DOI
10.1364/OE.16.017138
URI
http://hdl.handle.net/10203/90410
Appears in Collection
ME-Journal Papers(저널논문)
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