Generation and nonlinear propagation of optical vortices in nematic liquid crystals

Miroslaw A. Karpierz; Jacek Pilka; Urszula A. Laudyn; Michal Kwasny

doi:10.1117/12.3023297

13 March 2024 Generation and nonlinear propagation of optical vortices in nematic liquid crystals

Miroslaw A. Karpierz, Jacek Pilka, Urszula A. Laudyn, Michal Kwasny

Proceedings Volume PC12907, Emerging Liquid Crystal Technologies XIX; PC129070G (2024) https://doi.org/10.1117/12.3023297
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Optical vortices are of particular interest due to their numerous applications resulting from their orbital angular momentum. In this work a system for forming optical vortex beams based on the properties of nematic liquid crystals will be presented. It allows for the creation of vortices with different polarizations and different vortex charge, controlled by an electric field. Additionally, results showing nonlinear self-focusing of the vortex leading to diffraction compensation will be presented. Both reorientation nonlinearity and self-focusing thermal nonlinearity were used to create a self-trapped optical vortex propagating at a distance of the order of mm.

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Miroslaw A. Karpierz, Jacek Pilka, Urszula A. Laudyn, and Michal Kwasny "Generation and nonlinear propagation of optical vortices in nematic liquid crystals", Proc. SPIE PC12907, Emerging Liquid Crystal Technologies XIX, PC129070G (13 March 2024); https://doi.org/10.1117/12.3023297

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KEYWORDS

Optical vortices

Liquid crystals

Nonlinear optics

Polarization

Angular momentum

Beam propagation method

Spatial solitons

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