УДК: 519.245, 535.312, 535.92

Allowing for roughness when calculating the reflection of optical radiation in a three-dimensional object

Klass, E.V., Shakhovskiy, V.V., Badyuk, K.V., Ulianov, S.A.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Класс Е.В., Шаховский В.В., Бадюк К.В., Ульянов С.А. Учет шероховатости при расчете отражения оптического излучения в трехмерном объекте // Оптический журнал. 2014. Т. 81. № 2. С. 3–9.

Klass E.V., Shakhovskiy V.V., Badyuk K.V., Ulianov S.A. Allowing for roughness when calculating the reflection of optical radiation in a three-dimensional object [in Russian] // Opticheskii Zhurnal. 2014. V. 81. № 2. P. 3–9.

For citation (Journal of Optical Technology):

E. V. Klass, V. V. Shakhovskiĭ, K. V. Badyuk, and S. A. Ul’yanov, "Allowing for roughness when calculating the reflection of optical radiation in a three-dimensional object," Journal of Optical Technology. 81(2), 56-60 (2014). https://doi.org/10.1364/JOT.81.000056

Abstract:

This paper describes a technique for calculating the reflection of optical radiation from a rough three-dimensional object in the approximation of geometrical optics, using the Monte Carlo method. To allow for roughness, along with a macroscopic model of the object, a model is introduced at the microlevel, consisting of a substrate of finite size on which inhomogeneities are specified in the form of bodies bounded by second-order surfaces. The influence of edge effects on the microlevel model is investigated, and its optimal dimensions are selected. Results of the testing of the technique are presented, using experiments to determine the reflective properties of materials with a known degree of random roughness and of a three-dimensional object in the form of a biconical radiator.

Keywords:

geometrical optics, Monte Carlo method, statistical weight, optical radiation, reflection, rough surface, bidirectional reflection function, three-dimensional geometry

OCIS codes: 080.1753, 240.5770, 290.1483

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