Steady-state and dynamical Anderson localization of counterpropagating beams in two-dimensional photonic lattices
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We demonstrate Anderson localization of mutually incoherent counterpropagating beams in an optically induced two-dimensional photonic lattice. The effect is displayed in a system of two broad probe beams propagating head-on through a fixed disordered photonic lattice recorded in a photorefractive crystal. In addition to the steady-state localization, we also observe the dynamical localization; that is, the localization of time-changing beams. As compared to the localization of single beams, in which there exist no dynamical effects, the localization of counterpropagating beams is more pronounced and prone to instabilities. 2010 The American Physical Society.
author list (cited authors)
Jovi, D. M., & Beli, M. R.
complete list of authors
Jović, Dragana M||Belić, Milivoj R