Method of determining the optical constants of absorbing films: substrates with no absorption

Kotlikov, E.N., Yurkovets, E.V.

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Котликов Е.Н., Юрковец Е.В. Метод определения оптических констант поглощающих пленок. Подложки без поглощения // Оптический журнал. 2018. Т. 85. № 1. С. 59–64. http://doi.org/10.17586/1023-5086-2018-85-01-59-64

Kotlikov E.N., Yurkovets E.V. Method of determining the optical constants of absorbing films: substrates with no absorption [in Russian] // Opticheskii Zhurnal. 2018. V. 85. № 1. P. 59–64. http://doi.org/10.17586/1023-5086-2018-85-01-59-64

For citation (Journal of Optical Technology):

E. N. Kotlikov and E. V. Yurkovets, "Method of determining the optical constants of absorbing films: substrates with no absorption," Journal of Optical Technology. 85(1), 48-52 (2018). https://doi.org/10.1364/JOT.85.000048

Abstract:

This article describes a method of finding the optical constants of films—the refractive indices and absorption coefficients. The method is based on correcting the optical spectra for absorption. The spectra obtained after correction are free from absorption and can be analyzed by well-known methods for nonabsorbing films. To illustrate, the proposed method is used to analyze the spectra of BaF₂ optical films, and the optical constants are found for these films in the spectral range 1.7–12.5 μm.

Keywords:

correction function, films, dispersion, fluorides, refractive indice, absorption coefficient, reflection and transmission spectra

OCIS codes: 300.0300, 310.4165

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