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Customized spatiotemporal twisted partially coherent array wave packets in strongly nonlocal nonlinear media
Abstract:
In the strongly nonlocal regime, controllable propagation of arbitrary partially coherent spatiotemporal wave packets is achieved by constructing general solutions of the (3 + 1)-dimensional nonlinear Schrödinger equation and tailoring the initial pulse. The three-dimensional intensity distribution and multi-parameter control of spatiotemporal cosine-Gaussian dual-layer twisted Laguerre Gaussian Schell-model array wave packets with array phase are further investigated. Results show that the peak intensity exhibits pronounced spatiotemporal correlations; the chirp factor governs temporal shifting and broadening, while the array factor reshapes the transverse energy flow and drives steady-state evolution. This work advances the fundamental research on spatiotemporally twisted array beams in strongly nonlocal nonlinear media.
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