Self-organization of scattering in photorefractive KNbO(3) into a reconfigurable hexagonal spot array.
The scattering cone (~2 degrees ) from an Ar laser beam (514 nm) in photorefractive KNbO(3):Fe has been observed to transform into a reconfigurable hexagonal spot array. This phenomenon can be explained through the creation of laser-induced transmission and reflection grating arrays.
P P
PP
Banerjee
H L
HL
Yu
D A
DA
Gregory
N
N
Kukhtarev
H J
HJ
Caulfield