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18 December 2024 Development of waveplates with spatially controlled birefringence based on glancing-angle deposition coatings
Marcela Mireles Ramirez
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Proceedings Volume PC13190, Laser-Induced Damage in Optical Materials 2024; PC131900G (2024) https://doi.org/10.1117/12.3031968
Event: SPIE Laser Damage, 2024, San Ramon, CA, United States
Abstract
The development of optics that provide spatial control of birefringence could enable better control of laser beam polarization, but available solutions are limited. Here we demonstrate a method to locally modify the birefringence of waveplates fabricated by glancing-angle deposition. The method employs localized melting of the anisotropic microstructure and we demonstrate that this process is only possible under high vacuum. The direct-write method presented here can be readily utilized for coatings exhibiting form birefringence of virtually any chemical composition, size, and format. The associated material modifications are characterized using an array of tools.
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Marcela Mireles Ramirez "Development of waveplates with spatially controlled birefringence based on glancing-angle deposition coatings", Proc. SPIE PC13190, Laser-Induced Damage in Optical Materials 2024, PC131900G (18 December 2024); https://doi.org/10.1117/12.3031968
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KEYWORDS
Birefringence
Wave plates
Nanostructuring
Silica
Laser nanostructuring
Laser systems engineering
Laser welding
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