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arXiv · 2402.05062

Laser Beam Shaping Using a Photoinduced Azopolymer Droplet-Based Mask

R. Barille·A. Korbut·S. Zielinska·E. Ortyl·D. G. Perez
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Abstract

The dewetting of an azopolymer droplet, followed by the photostructuration of the evaporated droplet, is employed to create an amplitude mask. This straightforward process yields a large area featuring periodic micro- and nanostructures. The resulting pattern is utilized to generate a nondiffracting beam. Starting with a Gaussian beam illuminating the amplitude mask, the critical aspect is the production of a bright, ring-shaped beam with a high radius-to-width ratio and symmetric central laser spots, each with the same intensity. This alternative approach to shaping a laser beam is demonstrated as a rapid and cost-effective fabrication technique.

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R. Barille, A. Korbut, S. Zielinska, E. Ortyl, D. G. Perez. 2024-02-07. Laser Beam Shaping Using a Photoinduced Azopolymer Droplet-Based Mask. https://doi.org/10.1364/ao.510715

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