1.
Opt Lett
; 39(6): 1657-60, 2014 Mar 15.
Artigo
em Inglês
| MEDLINE
| ID: mdl-24690862
RESUMO
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.