On the instrument profile of slit spectrographs.

@article{Casini2014OnTI,
  title={On the instrument profile of slit spectrographs.},
  author={Roberto Casini and A. G. de Wijn},
  journal={Journal of the Optical Society of America. A, Optics, image science, and vision},
  year={2014},
  volume={31 9},
  pages={
          2002-10
        }
}
  • R. Casini, A. D. de Wijn
  • Published 30 August 2014
  • Physics
  • Journal of the Optical Society of America. A, Optics, image science, and vision
We derive an analytic expression for the instrument profile of a slit spectrograph, also known as the line spread function. While this problem is not new, our treatment relies on the operatorial approach to the description of diffractive optical systems, which provides a general framework for the analysis of the performance of slit spectrographs under different illumination conditions. Based on our results, we propose an approximation to the spectral resolution of slit spectrographs, taking… 

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