Multistate polarization addressing using a single beam in an azo polymer film.
Peculiar light-matter interactions can break the rule that a single beam polarization can address only two states in an optical memory device. Multistate storage of a single beam polarization is achieved using self-induced surface diffraction gratings in a photoactive polymer material. The grating orientation follows the incident light beam's polarization direction. The permanent self-induced surface relief grating can be read out in real time using the same laser beam.
Kandjani
S Ahmadi
SA
Laboratoire POMA, UMR 6136-Université d'Angers 2, Boulevard Lavoisier, 49045 Angers, France.
Barille
R
R
Dabos-Seignon
S
S
Nunzi
J M
JM
Ortyl
E
E
Kucharski
S
S