METHOD FOR DETERMINING THE ABSORPTION COEFFICIENTS OF TRANSPARENT FILM-FORMING MATERIALS Russian patent published in 2022 - IPC G01N21/55 G01N21/47 G02B5/28 

FIELD: material engineering.

SUBSTANCE: invention can be used in determining the absorption coefficients of transparent film-forming materials, mainly for laser gyroscopic mirrors. A method for determining the absorption coefficients of transparent film-forming materials consists in directing laser radiation at a mirror and determining the total radiation loss L_{oss before} and radiation scattering loss S_before, measuring the radiation transmission loss τ_before and then applying a half-wave or multiple layer of transparent film-forming material and measuring the total radiation loss L_{oss after}, scattering loss radiation S_after and radiation transmission losses τ_after, after which the radiation losses are determined, related only to the absorption before and after the application of the layer and the coefficient k(λ) of absorption of film-forming materials is determined.

EFFECT: increase in the accuracy of determining the absorption coefficient of transparent film-forming materials.

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