1. Formation of moving light domains during photorefractive feedback-controlled beam coupling
- Author
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Klaus H. Ringhofer, Maxim V. Gorkunov, V. P. Kamenov, and B. I. Sturman
- Subjects
Diffraction ,Physics ,business.industry ,Physics::Optics ,Boundary (topology) ,Photorefractive effect ,Grating ,Interference (wave propagation) ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Crystal ,Optics ,Domain (ring theory) ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,business ,Phase modulation - Abstract
We investigate the spatial structure of dynamic index and light gratings which arise during feedback-controlled photorefractive beam coupling with ultimate diffraction parameters. It is shown that the interference light fringes are split inside the crystal into two domains moving in the opposite directions; at the domain’s boundary they experience periodic breaking. The index grating generated by this light pattern consists of only one quasi-stationary domain. The found phenomenon is interpreted in terms of the theory of fast phase modulation.
- Published
- 2003
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