Partially Coherent Sources Whose Coherent Modes are Spatiotemporal Optical Vortex Beams
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.
Journal of Optics
Hyde, M. W., Korotkova, O., & Spencer, M. F. (2023). Partially coherent sources whose coherent modes are spatiotemporal optical vortex beams. Journal of Optics, 25(3), 035606. https://doi.org/10.1088/2040-8986/acba2d
© 2023 The Author(s). Published by IOP Publishing Ltd.
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