Poled polymer thin-film gratings studied with far-field optical diffraction and second-harmonic near-field microscopy

R. D. Schaller, R. J. Saykally, Y. R. Shen, F. Lagugné-Labarthet

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Electrical poling induces polar ordering of molecules in a grating that has been holographically inscribed on a thin film of polymer with azobenzene side chains. The resulting χ(2) grating, seen by second-harmonic-generation (SHG) near-field scanning optical microscopy, can have a periodic structure that is significantly different from the topographical image. The far-field linear and SHG diffraction patterns correlate well with the grating structures. Poling of the thin-film grating, which presumably has photodriven nonuniform material properties within each period, leads to the more complex structure of the χ(2) grating.

Original languageEnglish
Pages (from-to)1296-1298
Number of pages3
JournalOptics Letters
Issue number15
Publication statusPublished - Aug 1 2003


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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