Design Of New Holographic Gratings For A High S/N Ratio Flat Field Spectrograph

B Touzet; A Thevenon; J Flamand; J M Lerner

doi:10.1117/12.938453

31 October 1986 Design Of New Holographic Gratings For A High S/N Ratio Flat Field Spectrograph

B Touzet, A Thevenon, J Flamand, J M Lerner

Proceedings Volume 0655, Optical System Design, Analysis, Production for Advanced Technology Systems; (1986) https://doi.org/10.1117/12.938453
Event: 1986 International Symposium/Innsbruck, 1986, Innsbruck, Austria

Abstract

The rapidly growing use of multichannel detectors in the design of analytical instruments has lead to the development of concave holographic gratings which produce a flat spectrum. These gratings are corrected from aberrations, mainly astigmatism, and are blazed for improving the signal. Spectroscopic instruments are subject to two forms of stray-light - diffuse scatter from the grating, a problem that can be significantly reduced by using holographic gratings and multireflections that may include the grating. This problem may be solved by calculating an aberration corrected grating that operates "off plane" and is, in fact, tilted. This paper describes the effect of these improvements for optimizing signal to noise ratio of flat field spectrographs.

Citation Download Citation

B Touzet, A Thevenon, J Flamand, and J M Lerner "Design Of New Holographic Gratings For A High S/N Ratio Flat Field Spectrograph", Proc. SPIE 0655, Optical System Design, Analysis, Production for Advanced Technology Systems, (31 October 1986); https://doi.org/10.1117/12.938453

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