Efficiency Measurements Of Concave Aberration-Reduced Gratings

John Hoose; Steven C. Irick

doi:10.1117/12.951604

5 July 1989 Efficiency Measurements Of Concave Aberration-Reduced Gratings

John Hoose, Steven C. Irick

Proceedings Volume 1055, Raman Scattering, Luminescence and Spectroscopic Instrumentation in Technology; (1989) https://doi.org/10.1117/12.951604
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

The efficiency of planar gratings, both sinusoidal and blazed, is fairly well documented in theory and experiment. The question of efficiency often arises in conjunction with work we are doing in the area of aberration-reduced concave gratings. Since there is not much reported in the literature in this regard, we decided to study it and report it to the community at large. This is a report on the first of a larger study in progress. We chose to investigate an f/2.1 concave aberration-reduced sinusoidal grating of approximately 800 grooves per millimeter. It is used extensively at Milton Roy Company in color analyzing instruments for the wavelength range 350 - 800 nm. It has the ability to resolve approximately 5 nm across the band and is used in the spectrograph configuration. One question we wished to resolve was whether a small region of a concave grating could be approximated by the performance of a plane grating.

Citation Download Citation

John Hoose and Steven C. Irick "Efficiency Measurements Of Concave Aberration-Reduced Gratings", Proc. SPIE 1055, Raman Scattering, Luminescence and Spectroscopic Instrumentation in Technology, (5 July 1989); https://doi.org/10.1117/12.951604

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