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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 8 — Aug. 1, 2007
  • pp: 1839–1846

Spontaneous photoinduced patterning of azo-dye polymer films: the facts

Christophe Hubert, Céline Fiorini-Debuisschert, Licinio Rocha, Paul Raimond, and Jean-Michel Nunzi  »View Author Affiliations


JOSA B, Vol. 24, Issue 8, pp. 1839-1846 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001839


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Abstract

We describe the spontaneous photoinduced patterning of azo-dye polymer films. We have observed that the illumination of an azo-dye polymer film by a uniform single laser beam with normal incidence leads to a self-structurization process that results in the formation of well-ordered submicrometer-sized structures whose organization depends on the light polarization direction. A modulation depth as high as 100 nm can be achieved. The influence of several experimental parameters on the structure formation is studied. Results are discussed and confronted to different models and phenomena already investigated in the literature. A physical origin to this peculiar photopatterning process is proposed.

© 2007 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(160.4890) Materials : Organic materials
(160.5470) Materials : Polymers
(260.0260) Physical optics : Physical optics
(260.5130) Physical optics : Photochemistry
(310.3840) Thin films : Materials and process characterization

ToC Category:
Diffraction and Gratings

History
Original Manuscript: February 1, 2007
Manuscript Accepted: April 2, 2007
Published: July 19, 2007

Citation
Christophe Hubert, Céline Fiorini-Debuisschert, Licinio Rocha, Paul Raimond, and Jean-Michel Nunzi, "Spontaneous photoinduced patterning of azo-dye polymer films: the facts," J. Opt. Soc. Am. B 24, 1839-1846 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-8-1839

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