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1 April 2022 Extremely high angle Bessel beam shaper
Valeria V. Belloni, Luc Froehly, Luca Furfaro, Cyril Billet, François Courvoisier
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Proceedings Volume PC11987, Laser Resonators, Microresonators, and Beam Control XXIV; PC119870N (2022) https://doi.org/10.1117/12.2609432
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
Bessel beams are quasi-nondiffracting beams. They find numerous applications in high-aspect ratio laser material processing, optical trapping and nonlinear photonics. It is desirable to reach the highest angles to increase the local intensity and reduce the diameter of the laser-generated nanostructures. Here we report on experimental and numerical results of a new Bessel beam shaper which reaches half-cone angle of 48 degrees, i.e. approximately twice higher than state of the art. Numerical analysis of the setup and impact of component misalignment will be presented.
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Valeria V. Belloni, Luc Froehly, Luca Furfaro, Cyril Billet, and François Courvoisier "Extremely high angle Bessel beam shaper", Proc. SPIE PC11987, Laser Resonators, Microresonators, and Beam Control XXIV, PC119870N (1 April 2022); https://doi.org/10.1117/12.2609432
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KEYWORDS
Bessel beams
Lenses
Manufacturing
Microscopes
Nanostructures
Nonlinear optics
Objectives
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