We observe the formation of an intense optical wave packet fully localized in all dimensions, i.e., both longitudinally (in time) and in the transverse plane, with an extension of a few tens of fsec and microns, respectively. Our measurements show that the self-trapped wave is an X-shaped light bullet spontaneously generated from a standard laser wave packet via the nonlinear material response (i.e., second-harmonic generation), which extend the soliton concept to a new realm, where the main hump coexists with conical tails which reflect the symmetry of linear dispersion relationship.
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Data di pubblicazione: | 2003 | |
Titolo: | Spontaneously generated X-shaped light bullets | |
Autori: | DI TRAPANI P.; VALIULIS G.; PISKARSKAS A.; JEDRKIEWICZ O.; TRULL J.; CONTI C.; TRILLO S. | |
Rivista: | PHYSICAL REVIEW LETTERS | |
Parole Chiave: | Localizized wave; nonlinear optics | |
Abstract: | We observe the formation of an intense optical wave packet fully localized in all dimensions, i.e., both longitudinally (in time) and in the transverse plane, with an extension of a few tens of fsec and microns, respectively. Our measurements show that the self-trapped wave is an X-shaped light bullet spontaneously generated from a standard laser wave packet via the nonlinear material response (i.e., second-harmonic generation), which extend the soliton concept to a new realm, where the main hump coexists with conical tails which reflect the symmetry of linear dispersion relationship. | |
Digital Object Identifier (DOI): | 10.1103/PhysRevLett.91.093904 | |
Handle: | http://hdl.handle.net/11392/517262 | |
Appare nelle tipologie: | 03.1 Articolo su rivista |