Generating arbitrary laser beam shapes through phase-mapped designed beam splitting

Pedro Faleiros Silva; Sérgio Ricardo Muniz

doi:10.1109/sbfotoniopc50774.2021.9461952

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arXiv · 2204.09724

Generating arbitrary laser beam shapes through phase-mapped designed beam splitting

Pedro Faleiros Silva·Sérgio Ricardo Muniz

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Abstract

We describe here a method to generate high-definition arbitrary laser beam shapes and profiles useful to many applications, ranging from optical patterning and lithography to optical trapping of microscopic particles and ultracold atoms. The phase contrast between a binary grating and a targeted intensity distribution is encoded on a spatial light modulator to control light diffraction, producing very sharp, speckles-free, and smooth images. Besides simplicity, not requiring additional phase-plates, the method provides straightforward encoding of images onto phase-only masks by a direct pixel mapping, allowing simpler feedback schemes to correct and control light distributions and optical potentials in real-time.

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Pedro Faleiros Silva, Sérgio Ricardo Muniz. 2022-04-20. Generating arbitrary laser beam shapes through phase-mapped designed beam splitting. https://doi.org/10.1109/sbfotoniopc50774.2021.9461952

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