Abstract
We have numerically modeled astigmatism correction for a large-aperture mirror spectrometer using a tilted plane-parallel plate. The results suggest a decrease in the height of the astigmatic focal spot by a factor of 2–7 over the entire image field without reducing the spectral resolution. We have demonstrated experimentally that the described correction method is feasible on a prototype of a spectrometer. Based on the numerical modeling and experimental data, we have shown that practical application of the method is feasible in order to substantially improve the sensitivity of spectral instruments.
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E. S. Voropai, I. M. Gulis, and A. G. Kupreev, Vestn. Bel. Gos. Univ., Series 1. Fiz. Mat. Inform., No. 3, 12–18 (2007).
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 75, No. 1, pp. 143–148, January–February, 2008.
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Voropai, E.S., Gulis, I.M. & Kupreev, A.G. Astigmatism correction for a large-aperture dispersive spectrometer. J Appl Spectrosc 75, 150–155 (2008). https://doi.org/10.1007/s10812-008-9000-2
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DOI: https://doi.org/10.1007/s10812-008-9000-2