Observation of locked optical kink-antikink spatial shock waves.
We report the first experimental observation of optical spatial shock-wave pairs. The shock waves consist of two coupled kink and antikink beams that remain locked to each other throughout propagation in a nonlinear diffusion-driven photorefractive crystal. These coupled shock-wave pairs move undistorted at angles that fall outside their original angular sector of propagation.
Freedman
Barak
B
Department of Physics and Solid State Institute, Technion, Haifa 32000, Israel.
Carmon
Tal
T
Carvalho
M I
MI
Segev
Mordechai
M
Christodoulides
Demetrios N
DN