Isolated spots, which are spatially solitary states, are triggered at the desired positions by a control light in a nonlinear optical system with two-dimensional feedback. They exist because of the balance between isotropic transverse couplings of diffraction and an automatic regulation of feedback-loop gain owing to a simple low-cut spatial frequency filter. Self-scanning of isolated spots is caused by slight unisotropic transverse couplings without a special scanning mechanism. It provides a novel method for image display and image delay.
© 2000 Optical Society of America
Yoshio Hayasaki, Hirotsugu Yamamoto, and Nobuo Nishida, "Self-scanning of isolated spots in a nonlinear optical system with two-dimensional feedback," J. Opt. Soc. Am. B 17, 1211-1215 (2000)