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Appl Opt. 1991 Sep 1;30(25):3589-97. doi: 10.1364/AO.30.003589.

Aberration properties of a Czerny-Turner spectrograph using plane-holographic diffraction grating.

Abstract

In this paper I discuss the construction and the aberration properties of plane-holographic diffraction gratings in a Czerny-Turner mounting. A ray-tracing scheme has been formulated for computing the aberrations of the system. It has been found that in the area near the recording wavelength for the holographic grating, the system has better resolution than does a conventional grating system. The design parameters of a medium-sized holographic grating spectrograph are specified. The performance of the spectrograph is evaluated by plotting spot diagrams, which show that astigmatic defects are much reduced.

PMID:
20706430
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