Hydrogen bonded supramolecular azopolymers: a media for multilayered and polarization-multiplexed data storage based on two-photon process

Daqiao Hu; Yanlei Hu; Wenhao Huang; Qijin Zhang

doi:10.1117/12.2000686

27 November 2012 Hydrogen bonded supramolecular azopolymers: a media for multilayered and polarization-multiplexed data storage based on two-photon process

Daqiao Hu, Yanlei Hu, Wenhao Huang, Qijin Zhang

Author Affiliations +

Proceedings Volume 8559, Information Optics and Optical Data Storage II; 85590J (2012) https://doi.org/10.1117/12.2000686
Event: Photonics Asia, 2012, Beijing, China

Abstract

Supramolecular azopolymers were prepared through strong hydrogen bonding interaction between pyridine moiety of poly (4-vinylpyridine) (P4VP) and phenol moiety of 4-nitro- 4’-hydroxyazobenzene (AzoOH). A multilayered composite film with supramolecular azopolymers as a recording layer and polyvinyl alcohol (PVA) as a spacing layer was prepared through alternately stacking. Under two-photon excitation, azobenzene chromophore can be orientated perpendicularly to the polarization direction of the writing beam via trans-cis-trans photoisomerization, yielding optical birefringence. Polarization-multiplexed and multilayered optical data storage were demonstrated by encoding two letters in the same region of each of the two layers based on the property.

Citation Download Citation

Daqiao Hu, Yanlei Hu, Wenhao Huang, and Qijin Zhang "Hydrogen bonded supramolecular azopolymers: a media for multilayered and polarization-multiplexed data storage based on two-photon process", Proc. SPIE 8559, Information Optics and Optical Data Storage II, 85590J (27 November 2012); https://doi.org/10.1117/12.2000686

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