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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 6 — Mar. 15, 2014
  • pp: 1657–1660

Photorefractive light needles in glassy nanodisordered KNTN

D. Pierangeli, J. Parravicini, F. Di Mei, G. B. Parravicini, A. J. Agranat, and E. DelRe  »View Author Affiliations


Optics Letters, Vol. 39, Issue 6, pp. 1657-1660 (2014)
http://dx.doi.org/10.1364/OL.39.001657


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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.

© 2014 Optical Society of America

OCIS Codes
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(190.5330) Nonlinear optics : Photorefractive optics
(190.6135) Nonlinear optics : Spatial solitons

ToC Category:
Nonlinear Optics

History
Original Manuscript: October 17, 2013
Revised Manuscript: February 10, 2014
Manuscript Accepted: February 11, 2014
Published: March 14, 2014

Citation
D. Pierangeli, J. Parravicini, F. Di Mei, G. B. Parravicini, A. J. Agranat, and E. DelRe, "Photorefractive light needles in glassy nanodisordered KNTN," Opt. Lett. 39, 1657-1660 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-6-1657


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