FIELD: physics.
SUBSTANCE: invention is based on the task of obtaining periodic profiles on the surface of paratellurite crystals by the method of anisotropic chemical etching. A plate cut from a paratellurite crystal and ground is covered with a mixture of a chemically resistant nitrocellulose lacquer with a solvent of 646, part of the mixture is removed with a diamond needle at various intervals, then chemical etching, washing is performed, resulting in a periodic structure of a given geometry on the surface of the sample.
EFFECT: application of this method allows obtaining periodic profiles on paratellurite crystals having high optical characteristics.
3 dwg
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