Generation and practical controlling of adaptative structured photorefractive moiré patterns for optical metrology applications

Abstract

This paper provides a comprehensive account of the generation and control of dynamic structured moiré patterns produced holographically in straightforward laboratory procedures. The process entails superimposing sinusoidal gratings on the Bi12TiO20 (BTO) photorefractive crystal as the dynamic holographic medium. We will provide a detailed account of the straightforward optical procedures and instrumental operations that facilitate the generation of these patterns with convenient geometries. Some of the notable applications that have already been demonstrated include profilometry and numerical representation, while others, such as structured illumination microscopy (SIM), are still under development.