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Proceedings Paper

Hydrogen bonded supramolecular azopolymers: a media for multilayered and polarization-multiplexed data storage based on two-photon process
Author(s): Daqiao Hu; Yanlei Hu; Wenhao Huang; Qijin Zhang
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Paper 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.

Paper Details

Date Published: 27 November 2012
PDF: 6 pages
Proc. SPIE 8559, Information Optics and Optical Data Storage II, 85590J (27 November 2012); doi: 10.1117/12.2000686
Show Author Affiliations
Daqiao Hu, Anhui Univ. (China)
Univ. of Science and Technology of China (China)
Yanlei Hu, Univ. of Science and Technology of China (China)
Wenhao Huang, Univ. of Science and Technology of China (China)
Qijin Zhang, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 8559:
Information Optics and Optical Data Storage II
Feijun Song; Hui Li; Xiudong Sun; Francis T. S. Yu; Suganda Jutamulia; Kees A. Schouhamer Immink; Keiji Shono, Editor(s)

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