Light propagation in a meniscus made of a crystal with a radially directed optical axis is considered under geometric optics approximation. A model of discrete refraction of an extraordinary ray in the meniscus is developed. Nonlinear propagation of extraordinary rays in a meniscus, which depends on the geometric dimensions of the component, ratio of refractive indices for ordinary and extraordinary rays, and local direction of the optical axis of the crystal, is demonstrated. (C) 2021 Optical Society of America
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