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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 6 — Mar. 15, 2009
  • pp: 761–763

All-optical subdiffraction multilevel data encoding onto azo-polymeric thin films

Matteo Savoini, Paolo Biagioni, Lamberto Duò, and Marco Finazzi  »View Author Affiliations


Optics Letters, Vol. 34, Issue 6, pp. 761-763 (2009)
http://dx.doi.org/10.1364/OL.34.000761


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Abstract

By exploiting photoinduced reorientation in azo-polymer thin films, we demonstrate all-optical polarization-encoded information storage with a scanning near-field optical microscope. In the writing routine, five-level bits are created by associating different bit values to different birefringence directions, induced in the polymer after illumination with linearly polarized light. The reading routine is then performed by implementing polarization-modulation techniques on the same near-field microscope in order to measure the encoded birefringence direction.

© 2009 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(210.4810) Optical data storage : Optical storage-recording materials
(260.1440) Physical optics : Birefringence
(210.4245) Optical data storage : Near-field optical recording
(310.5448) Thin films : Polarization, other optical properties

ToC Category:
Optical Data Storage

History
Original Manuscript: December 23, 2008
Revised Manuscript: February 4, 2009
Manuscript Accepted: February 4, 2009
Published: March 6, 2009

Citation
Matteo Savoini, Paolo Biagioni, Lamberto Duò, and Marco Finazzi, "All-optical subdiffraction multilevel data encoding onto azo-polymeric thin films," Opt. Lett. 34, 761-763 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-6-761


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