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arXiv · 2501.14357

On z-coherence in self-focusing

F. Gori·R. Martínez-Herrero·G. Piquero·J. C. González de Sande·O. Korotkova·M. Santarsiero
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Abstract

Both the intensity distribution and the degree of coherence between pairs of points along the propagation axis (z-coherence) are derived in closed form for a phenomenon of self-focusing produced by circularly coherent light. The first confirms results previously obtained numerically, while the second exhibits new complex features. The physical interpretation is obtained by a suitable pseudo-modal expansion that suggests an analogy with a simple two-mode structure.

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F. Gori, R. Martínez-Herrero, G. Piquero, J. C. González de Sande, O. Korotkova, M. Santarsiero. 2025-01-24. On z-coherence in self-focusing. https://doi.org/10.1364/ol.455449

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