Partially coherent sources whose coherent modes are spatiotemporal optical vortex beams

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