Speckle effect on diffusers in space-based spectrometers

Hedser H. van Brug; Grégory Bazalgette Courrège-Lacoste; Jos J. M. Groote-Schaarsberg; Bart B. Snijders

doi:10.1117/1.2722737

1 April 2007 Speckle effect on diffusers in space-based spectrometers

Hedser H. van Brug, Grégory Bazalgette Courrège-Lacoste, Jos J. M. Groote-Schaarsberg, Bart B. Snijders

Author Affiliations +

Optical Engineering, Vol. 46, Issue 4, 046201 (April 2007). https://doi.org/10.1117/1.2722737

Abstract

The use of diffusers in space-based spectrometers leads to the creation of speckles, in the entrance slit. Due to these speckles, unwanted modulations in the measured spectral data are observed. We explain the origin of these unwanted modulations, which we refer to as speckle-induced spectral features or, in short, spectral features. A single value is introduced that can be used to indicate the effect of the speckle-induced spectral features, the spectral feature amplitude (SFA). Measurement and modeling of the SFA parameter on aluminum diffusers are presented.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Hedser H. van Brug, Grégory Bazalgette Courrège-Lacoste, Jos J. M. Groote-Schaarsberg, and Bart B. Snijders "Speckle effect on diffusers in space-based spectrometers," Optical Engineering 46(4), 046201 (1 April 2007). https://doi.org/10.1117/1.2722737

Published: 1 April 2007

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