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Holographic Grating Spectrometers: Wood's Anomalies, Spectral Response Functions, and Their Dependence on Groove Density

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Abstract:

Presented is a study of plane holographic gratings with sinusoidal groove profiles, focusing attention on the dependence of grating efficiency on groove density. Experimental spectral response curves are given for a number of gratings with different groove densities in an additive-dispersion double monochromator designed for work at visible wave-lengths. The Wood's anomalies, both order-passing and resonance type, are characterized in each case. Simple equations are derived for predicting order-passing wavelengths given a fixed angle of deviation between the incident beam and the observed diffraction order. The trend in the strength of the anomalies is compared with theoretical calculations.

Keywords: Optics; UV, Visible, and Raman instrumentation; UV-VIS spectroscopy

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702864815510

Affiliations: AT&T Bell Laboratories, Murray Hill, New Jersey 07974

Publication date: January 1, 1986

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