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EnglishWe 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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http://hdl.handle.net/11392/517262| Titolo: | Spontaneously generated X-shaped light bullets |
| Autori interni: | TRILLO, Stefano |
| Data di pubblicazione: | 2003 |
| Rivista: | PHYSICAL REVIEW LETTERS |
| 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. |
| Handle: | http://hdl.handle.net/11392/517262 |
| Appare nelle tipologie: | 03.1 Articolo su rivista |
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