Astigmatism correction for a large-aperture dispersive spectrometer

Journal of Applied Spectroscopy volume 75, pages150–155(2008)Cite this article

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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Affiliations

  1. Belorussian State University, 4 prosp. Nezavisimosti, Minsk, 220030, Belarus

    E. S. Voropai, I. M. Gulis & A. G. Kupreev

Authors
  1. E. S. Voropai
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  2. I. M. Gulis
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  3. A. G. Kupreev
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Corresponding author

Correspondence to A. G. Kupreev.

Additional information

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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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Key words

  • astigmatism correction
  • spectral instrument
  • plane-parallel plate