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Spatial Rogue Waves in Photorefractive Ferroelectrics.
Pierangeli, D; Di Mei, F; Conti, C; Agranat, A J; DelRe, E.
Afiliação
  • Pierangeli D; Dipartimento di Fisica, Università di Roma "La Sapienza", 00185 Rome, Italy.
  • Di Mei F; Dipartimento di Fisica, Università di Roma "La Sapienza", 00185 Rome, Italy.
  • Conti C; Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, 00161 Rome, Italy.
  • Agranat AJ; Dipartimento di Fisica, Università di Roma "La Sapienza", 00185 Rome, Italy.
  • DelRe E; ISC-CNR, Università di Roma "La Sapienza", 00185 Rome, Italy.
Phys Rev Lett ; 115(9): 093901, 2015 Aug 28.
Article em En | MEDLINE | ID: mdl-26371654
Rogue waves are observed as light propagates in the extreme nonlinear regime that occurs when a photorefractive ferroelectric crystal is undergoing a structural phase transition. The transmitted spatial light distribution contains bright localized spots of anomalously large intensity that follow a signature long-tail statistics that disappears as the nonlinearity is weakened. The isolated wave events form as out-of-equilibrium response and disorder enhance the Kerr-saturated nonlinearity at the critical point. Self-similarity associable to the individual observed filaments and numerical simulations of the generalized nonlinear Schrödinger equation suggests that dynamics of soliton fusions and scale invariance can microscopically play an important role in the observed rogue intensities and statistics.
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2015 Tipo de documento: Article
Buscar no Google
Base de dados: MEDLINE Idioma: En Ano de publicação: 2015 Tipo de documento: Article