Laser beam shaping using a photoinduced azopolymer droplet-based mask.
Appl Opt
; 63(4): 990-998, 2024 Feb 01.
Article
em En
| MEDLINE
| ID: mdl-38437396
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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MEDLINE
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En
Ano de publicação:
2024
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Article