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Proceedings Article

Methods for prediction of refractive index in glasses for the infrared

[+] Author Affiliations
John S. McCloy

Pacific Northwest National Lab. (USA)

Proc. SPIE 8016, Window and Dome Technologies and Materials XII, 80160G (May 20, 2011); doi:10.1117/12.882536
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From Conference Volume 8016

  • Window and Dome Technologies and Materials XII
  • Randal W. Tustison
  • Orlando, Florida, USA | April 25, 2011

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.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

John S. McCloy
"Methods for prediction of refractive index in glasses for the infrared", Proc. SPIE 8016, Window and Dome Technologies and Materials XII, 80160G (May 20, 2011); doi:10.1117/12.882536; http://dx.doi.org/10.1117/12.882536


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