Flow and controlled rotation of the spontaneous optical hexagon in KNbO_3
- 15 April 1995
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 20 (8) , 851-853
- https://doi.org/10.1364/ol.20.000851
Abstract
The flow and rotation of the optical hexagonal pattern spontaneously formed in a photorefractive KNbO3 crystal is studied. It is demonstrated that the direction and speed of rotation can be controlled with an additional erase laser beam.Keywords
This publication has 8 references indexed in Scilit:
- Self-organization of scattering in photorefractive KNbO_3 into a reconfigurable hexagonal spot arrayOptics Letters, 1995
- Transverse instability of energy-exchanging counterpropagating waves in photorefractive mediaJournal of the Optical Society of America B, 1994
- Roll-Hexagon Transition in a Kerr-Like ExperimentEurophysics Letters, 1993
- Transverse pattern formation in liquid crystal light valve feedback systemOptics Communications, 1993
- Hexagonally patterned beam filamentation in a thin liquid-crystal film with a single feedback mirrorOptics Letters, 1993
- Hexagonal pattern formation due to counterpropagation in KNbO_3Optics Letters, 1993
- Spontaneous optical pattern formation in a nematic liquid crystal with feedback mirrorOptics Communications, 1992
- Spontaneous hexagon formation in a nonlinear optical medium with feedback mirrorPhysical Review Letters, 1991