The instabilities arising in a one-dimensional beam sustained by the diffusive photorefractive nonlinearity in out-of-equilibrium ferroelectrics are theoretically and numerically investigated. In the "scale-free model," in striking contrast with the well-known spatial modulational instability, two different beam instabilities dominate: a defocusing and a fragmenting process. Both are independent of the beam power and are not associated with any specific periodic pattern. © 2012 American Physical Society

Beam instabilities in the scale-free regime / V., Folli; DEL RE, Eugenio; Conti, Claudio. - In: PHYSICAL REVIEW LETTERS. - ISSN 1079-7114. - STAMPA. - 108:3(2012), p. 033901. [10.1103/physrevlett.108.033901]

Beam instabilities in the scale-free regime.

DEL RE, EUGENIO;CONTI, CLAUDIO
2012

Abstract

The instabilities arising in a one-dimensional beam sustained by the diffusive photorefractive nonlinearity in out-of-equilibrium ferroelectrics are theoretically and numerically investigated. In the "scale-free model," in striking contrast with the well-known spatial modulational instability, two different beam instabilities dominate: a defocusing and a fragmenting process. Both are independent of the beam power and are not associated with any specific periodic pattern. © 2012 American Physical Society
nonlinear waves; optics; solitons
01 Pubblicazione su rivista::01a Articolo in rivista
Beam instabilities in the scale-free regime / V., Folli; DEL RE, Eugenio; Conti, Claudio. - In: PHYSICAL REVIEW LETTERS. - ISSN 1079-7114. - STAMPA. - 108:3(2012), p. 033901. [10.1103/physrevlett.108.033901]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/432961
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