Spectral features: an overview

Hedser van Brug

doi:10.1117/12.890314

6 October 2011 Spectral features: an overview

Hedser van Brug

Proceedings Volume 8148, Solar Physics and Space Weather Instrumentation IV; 81480R (2011) https://doi.org/10.1117/12.890314
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

This article will give an overview of all effects that determine the spectral features amplitude (SFA). The origin of spectral features is explained and methods are indicated that can be used to minimize the SFA. Spectral features are observed in the ratio between two spectra of sun calibration measurements. Mechanisms helping to reduce spectral features are spectral averaging, angular averaging, and temporal averaging. It will be shown what optical design choices can be made in order to benefit from these SFA reducing mechanisms. In the final chapter some insight in the modeling is given where four types of diffusers are compared.

Citation Download Citation

Hedser van Brug "Spectral features: an overview", Proc. SPIE 8148, Solar Physics and Space Weather Instrumentation IV, 81480R (6 October 2011); https://doi.org/10.1117/12.890314

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