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.

© 1995 Optical Society of America

Self-organization of scattering in photorefractive KNbO₃ into a reconfigurable hexagonal spot array

Partha P. Banerjee, Hseuh-Lin Yu, Don A. Gregory, Nickolai Kukhtarev, and H. John Caulfield
Opt. Lett. 20(1) 10-12 (1995)

Buildup of spontaneous hexagonal patterns in photorefractive BaTiO₃ with a feedback mirror

Tokuyuki Honda and Hirokazu Matsumoto
Opt. Lett. 20(17) 1755-1757 (1995)

Hexagonal pattern formation due to counterpropagation in KNbO₃

Tokuyuki Honda
Opt. Lett. 18(8) 598-600 (1993)

Spontaneous hexagon formation in photorefractive crystal with a single pump wave

P. M. Lushnikov and A. V. Mamaev
Opt. Lett. 24(21) 1511-1513 (1999)

High-repetition-rate femtosecond optical parametric oscillator based on KNbO₃

D. E. Spence, S. Wielandy, C. L. Tang, C. Bosshard, and P. Günter
Opt. Lett. 20(7) 680-682 (1995)