Gori F, Martínez-Herrero R, Piquero G, de Sande JCG, Korotkova O, Santarsiero M. On z-coherence in self-focusing.
OPTICS LETTERS 2022;
47:1681-1684. [PMID:
35363708 DOI:
10.1364/ol.455449]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
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.
Collapse