Pure two-dimensional polarization patterns for holographic recording.
Two-dimensional (2D) polarization patterns are achieved by the interference of two pairs of beams with perpendicular planes of incidence and orthogonal polarizations (i.e. linear or circular). In both cases, imposing a phase shift of π/2 between consecutive beams contains the amplitude modulation of the optical field in the superposition region and, thus, pure 2D polarization patterns are created. The recording of these interference fields in a polarization-sensitive material, namely an amorphous azopolymer, creates reconfigurable 2D periodic microstructures with peculiar diffraction properties.
Dipartimento di Fisica, Università della Calabria, Rende (CS), Italy.
Ulises
U
Ruiz
Clementina
C
Provenzano
Pasquale
P
Pagliusi
Gabriella
G
Cipparrone