We report on the observation of a new mechanism for self-trapping of optical beams: self-trapping that stems from spontaneous creation of ferroelectric crystalline clusters, seeded by a weak photorefractive diffusion field. This is an evident observation of the highly nonlinear aspects of propagation in a thermodynamically metastable system, including optically driven crystalline ordering in a medium undergoing a phase transition.
Spontaneous self-trapping of optical beams in metastable paraelectric crystals / DEL RE, Eugenio; Mario, Tamburrini; Mordechai, Segev; Refael Della, Pergola; Aharon, Agranat. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 83:10(1999), pp. 1954-1957. [10.1103/physrevlett.83.1954]
Spontaneous self-trapping of optical beams in metastable paraelectric crystals
DEL RE, EUGENIO;
1999
Abstract
We report on the observation of a new mechanism for self-trapping of optical beams: self-trapping that stems from spontaneous creation of ferroelectric crystalline clusters, seeded by a weak photorefractive diffusion field. This is an evident observation of the highly nonlinear aspects of propagation in a thermodynamically metastable system, including optically driven crystalline ordering in a medium undergoing a phase transition.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
