Spin-orbit Laguerre-Gauss beam shaping

Etienne Brasselet

doi:10.1117/12.2573510

15 June 2020 Spin-orbit Laguerre-Gauss beam shaping

Etienne Brasselet

Proceedings Volume 11522, Optical Manipulation and Structured Materials Conference 2020; 1152202 (2020) https://doi.org/10.1117/12.2573510
Event: SPIE Technologies and Applications of Structured Light, 2020, Yokohama, Japan

Abstract

Beam shaping is an essential ingredient of photonic technologies and emerging applications based on inhomogeneous light fields motivate the exploration of various approaches to spatially structure the main features of a light beam, such as intensity, phase, or polarization state. The advent of micro/nanofabrication technologies nowadays offer novel opportunities to exploit the spin-orbit interaction of light for shaping the complex amplitude of light. Here we discuss how phase and amplitude could be spatially shaped in order to achieve Laguerre-Gauss modal beam shapers. This requires to account for the effects of both dynamic and geometric phase and experimental realization is yet to me demonstrated.

Citation Download Citation

Etienne Brasselet "Spin-orbit Laguerre-Gauss beam shaping", Proc. SPIE 11522, Optical Manipulation and Structured Materials Conference 2020, 1152202 (15 June 2020); https://doi.org/10.1117/12.2573510

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KEYWORDS

Spiral phase plates

Beam shaping

Phase shift keying

Geometrical optics

Modulation

Polarization

Laser beam propagation

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