Extremely high angle Bessel beam shaper

Valeria V. Belloni; Luc Froehly; Luca Furfaro; Cyril Billet; François Courvoisier

doi:10.1117/12.2609432

1 April 2022 Extremely high angle Bessel beam shaper

Valeria V. Belloni, Luc Froehly, Luca Furfaro, Cyril Billet, François Courvoisier

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.

Conference Presentation

Citation Download Citation

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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