Partially Coherent Sources Whose Coherent Modes are Spatiotemporal Optical Vortex Beams

Document Type

Article

Publication Date

3-2023

Abstract

We analyze three non-stationary partially coherent sources whose coherent modes are spatiotemporal optical vortex (STOV) beams. Using spatiotemporal (ST) Bessel–Gauss and Laguerre–Gauss beams (STOV-carrying solutions to the space-time paraxial wave equation) as eigenfunctions in the coherent-modes representation of the mutual coherence function, we derive the ST versions of J 0 -Bessel-correlated, I n -Bessel-correlated, and twisted Gaussian Schell-model beams. We model, in simulation, these ST random beams via their coherent-modes expansions, compare and contrast the simulated results to theory, and analyze/discuss their free-space propagation characteristics. The work presented in this paper will be useful for simulating or physically generating these ST beams for use in applications or future studies.

Comments

© 2023 The Author(s). Published by IOP Publishing Ltd.

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DOI

10.1088/2040-8986/acba2d

Source Publication

Journal of Optics

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