All Physics Faculty Publications

Document Type

Article

Journal/Book Title/Conference

SPIE Proceedings: Optical System Contamination: Effects, Measurements, and Control VII

Volume

4774

Editor

Philip T. Chen, O. Manuel Uy

Publication Date

1-1-2002

First Page

111

Last Page

118

DOI

doi: 10.1117/12.481667

Abstract

Molecular surface contaminants can cause degradation of optical systems, especially if the contaminants exhibit strong absorption bands in the region of interest. Different strategies for estimation of spectral degradation responses due to uniform films for various types of systems are reviewed. One tool for calculating the effects of contaminant film thickness on signal degradation in the mid IR region is the simulation program CALCRT. The CALCRT database will be reviewed to correlate spectral n and k values associated with specific classes of organic functional groups. Various schemes are also investigated to estimate the spectral degradation in the UV-Vis region. Experimental measurements of reflectance changes in the IR to UV-Vis regions due to specific contaminants will be compared. Approaches for estimating changes in thermal emissivity and solar absorptivity will also be discusse

Comments

Published by SPIE. Publisher PDF available for download.

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