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Design of two-dimensional (crossed) grating calculation in Czerny-Turner spectrometer with usage of freeform mirrors
Author(s): Yury Bazhanov; Elena Demura; Rasima Cherkashina; Vadim Vlahco
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Paper Abstract

The possibility of building a spectrometer based on a flat two-dimensional (crossed) grating is being considered. The most suitable layout for this is the Czerny - Turner, where a spectral image lies in the plane. In this paper an attempt to compensate for the transverse aberrations is made by using a diffraction grating with variable spacing grooves in both sections and aspheric mirror elements of layout, including ones having a freeform surface. Using crossed grating greatly simplifies the device layout and may be particularly effective when used in the ultraviolet and infrared regions of the spectrum, due to a small choice of transmissive materials for manufacturing spectral prisms. This paper gives examples of such case.

Paper Details

Date Published: 23 August 2017
PDF: 6 pages
Proc. SPIE 10375, Current Developments in Lens Design and Optical Engineering XVIII, 103750V (23 August 2017); doi: 10.1117/12.2272175
Show Author Affiliations
Yury Bazhanov, Precision Systems and Instruments Corp. (Russian Federation)
Elena Demura, Precision Systems and Instruments Corp. (Russian Federation)
Rasima Cherkashina, Precision Systems and Instruments Corp. (Russian Federation)
Vadim Vlahco, Dynaoptics (Singapore)


Published in SPIE Proceedings Vol. 10375:
Current Developments in Lens Design and Optical Engineering XVIII
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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