Observation of conical waves in focusing, dispersive, and dissipative Kerr media |
| |
Authors: | Polesana P Couairon A Faccio D Parola A Porras M A Dubietis A Piskarskas A Di Trapani P |
| |
Affiliation: | Department of Quantum Electronics, Vilnius University, Sauletekio Avenue 9, LT-10222 Vilnius, Lithuania. |
| |
Abstract: | Excitation of unbalanced-Bessel beams by a gradual increase of nonlinearity in a water sample outlines the achievement of the first ever observed quasimonochromatic wave packet that propagates stably for hundreds of Rayleigh lengths in a focusing and dispersive Kerr medium, i.e., in the absence of spectral broadening and conical emission. A modulational instability analysis reveals the key role of nonlinear dissipation in quenching the growth of spatiotemporal unstable modes. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|