Multistate polarization addressing using a single beam in an azo polymer film |
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Authors: | Kandjani S Ahmadi Barille R Dabos-Seignon S Nunzi J M Ortyl E Kucharski S |
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Institution: | Laboratoire POMA, UMR 6136-Université d'Angers 2, Boulevard Lavoisier, 49045 Angers, France. |
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Abstract: | 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. |
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