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

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

doi:10.1117/12.475452

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

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

Northwestern University, Argonne National Laboratory

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

Electrical poling induces polar ordering of molecules in a grating that has been holographically inscribed on a thin film of polymer functionalized with azobenzene side chains. Depending on the surface relief amplitude, the resulting χ⁽²⁾ grating, seen by second harmonic generation (SHG) near-field scanning optical microscopy (NSOM), can have a periodic structure 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 photo-driven non-uniform material properties within each period, leads to the more complex structure of the χ⁽²⁾ grating.

Original language	English
Pages (from-to)	305-312
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4991
DOIs	https://doi.org/10.1117/12.475452
Publication status	Published - Nov 27 2003
Event	PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Organic Photonic Materials and Devices V - San Jose, CA, United States Duration: Jan 27 2003 → Jan 30 2003

Keywords

Azopolymers
Diffraction
Near-field optical microscopy
Nonlinear optical gratings

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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Poled polymer thin-film gratings studied by near-field second harmonic optical microscopy and far-field optical diffraction. / Schaller, R. D.; Saykally, R. J.; Shen, Y. R.; Lagugné-Labarthet, F.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4991, 27.11.2003, p. 305-312.

Research output: Contribution to journal › Conference article › peer-review

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abstract = "Electrical poling induces polar ordering of molecules in a grating that has been holographically inscribed on a thin film of polymer functionalized with azobenzene side chains. Depending on the surface relief amplitude, the resulting χ(2) grating, seen by second harmonic generation (SHG) near-field scanning optical microscopy (NSOM), can have a periodic structure 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 photo-driven non-uniform material properties within each period, leads to the more complex structure of the χ(2) grating.",

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AU - Schaller, R. D.

AU - Saykally, R. J.

AU - Shen, Y. R.

AU - Lagugné-Labarthet, F.

PY - 2003/11/27

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