We experimentally investigate pump beam frequency detuning as a control technique in a photorefractive single-mirror feedback system exhibiting spontaneous self-organized transverse pattern formation with a regime of multistability. Deterministic switching between bistable patterns is demonstrated experimentally. An experimental stability analysis uncovers the effect of frequency detuning on the thresholds of unstable modes. The interaction of independent modes is found to be responsible for the different pattern symmetries observed in this system.
© 2007 Optical Society of America
Original Manuscript: May 31, 2006
Revised Manuscript: October 27, 2006
Manuscript Accepted: October 27, 2006
Published: February 15, 2007
Philip Jander, Christian Ripperda, and Cornelia Denz, "Pattern control and mode interaction in a photorefractive single feedback system," J. Opt. Soc. Am. B 24, 553-558 (2007)