Skip to Main content Skip to Navigation
Conference papers

Advection effect in a photorefractive single feedback system: from noise- to dynamics- sustained instabilities

Nicolas Marsal 1 Delphine Wolfersberger 1 Marc Sciamanna 1 Germano Montemezzani 1
1 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes
Abstract : An experimental analysis of the dynamics of optical patterns emerging from a photorefractive two-wave mixing geometry is investigated. The dynamics appears in the system, when a tilted single feedback mirror gives rise to an advection-like effect. Depending on the nonlocal coupling (introduced by the tilting angle) between the two counterpropagating beams, the strength of the nonlocal response of the nonlinear photorefractive bulk medium and the distance mirror-crystal, we report on: the seeding of new pattern geometry, the inversion of pattern transverse phase velocity and the bifurcation from convective to absolute instabilities.
Document type :
Conference papers
Complete list of metadatas
https://hal-supelec.archives-ouvertes.fr/hal-00552146
Contributor : Sébastien van Luchene <>
Submitted on : Wednesday, January 5, 2011 - 3:45:18 PM
Last modification on : Wednesday, April 15, 2020 - 11:38:12 AM

Identifiers

Collections

SUPELEC | SUP_OPTEL | SUP_LMOPS | CENTRALESUPELEC | UNIV-LORRAINE | UNIV-PARIS-SACLAY | LMOPS-PHOTONIQUE

Citation

Nicolas Marsal, Delphine Wolfersberger, Marc Sciamanna, Germano Montemezzani. Advection effect in a photorefractive single feedback system: from noise- to dynamics- sustained instabilities. SPIE Photonics Europe, Apr 2010, Bruxelles, Belgium. pp.0W, ⟨10.1117/12.854212⟩. ⟨hal-00552146⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

133