Photorefractive light needles in glassy nanodisordered KNTN.
Opt Lett
; 39(6): 1657-60, 2014 Mar 15.
Article
em En
| MEDLINE
| ID: mdl-24690862
ABSTRACT
We study the formation of 2D self-trapped beams in nanodisordered potassium-sodium-tantalate-niobate (KNTN) cooled below the dynamic glass transition. Supercooling is shown to accelerate the photorefractive response and enhance steady-state anisotropy. Effects in the excited state are attributed to the anomalous slim-loop polarization curve typical of relaxors dominated by non-interacting polar-nano-regions.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Refratometria
/
Nanopartículas Metálicas
/
Vidro
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2014
Tipo de documento:
Article