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Proceedings Paper

Methods for prediction of refractive index in glasses for the infrared
Author(s): John S. McCloy
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Paper Abstract

It is often useful to obtain custom glasses that meet particular requirements of refractive index and dispersion for highend optical design and applications. In the case of infrared glasses, limited experimental data are available due to difficulties in processing of these glasses and also measuring refractive indices accurately. This paper proposes methods to estimate refractive index and dispersion as a function of composition for selected infrared-transmitting glasses. Methods for refractive index determination are reviewed and evaluated, including Gladstone-Dale, Wemple- DiDomenico single oscillator, Optical basicity, and Lorentz-Lorenz total polarizability. Various estimates for a set of PbO-Bi2O3-Ga2O3 (heavy metal oxide) and As-S (chalcogenide) glasses will be compared with measured values of index and dispersion.

Paper Details

Date Published: 20 May 2011
PDF: 16 pages
Proc. SPIE 8016, Window and Dome Technologies and Materials XII, 80160G (20 May 2011); doi: 10.1117/12.882536
Show Author Affiliations
John S. McCloy, Pacific Northwest National Lab. (United States)

Published in SPIE Proceedings Vol. 8016:
Window and Dome Technologies and Materials XII
Randal W. Tustison, Editor(s)

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