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.
Banerjee
P P
PP
Yu
H L
HL
Gregory
D A
DA
Kukhtarev
N
N
Caulfield
H J
HJ