• J N Desai

      Articles written in Journal of Earth System Science

    • Fabry-Perot spectroscopy in space science

      J N Desai

      More Details Abstract Fulltext PDF

      The paper describes use of Fabry-Perot (fp) systems in spectroscopic studies of astronomy and earth’s upper atmosphere. Factors influencing the resolution, luminosity and instrumental line shape offp spectrometer are discussed and the need for their optimization is emphasised, if desired luminosity gain is to be realised in practice. Use offp as imaging spectrometer, scanning spectrometer and as a narrow band filter are illustrated. Tandemfp systems are briefly dealt with.

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