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Optimizing the parameters of concave diffraction gratings on the basis of a calculation of the spread functions of spectral devices

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Abstract

This paper proposes a technique for finding the optimum parameters of a concave diffraction grating and a system for using it by minimizing the half-width of the spread function of a spectral device. The spread functions are calculated including the transmittance function of the device, which depends on the irradiance distribution and the diffraction efficiency over the grating surface.

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