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 | |
| 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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Cite this
Schaller, R. D., Saykally, R. J., Shen, Y. R., & Lagugné-Labarthet, F. (2003). Poled polymer thin-film gratings studied by near-field second harmonic optical microscopy and far-field optical diffraction. Proceedings of SPIE - The International Society for Optical Engineering, 4991, 305-312. https://doi.org/10.1117/12.475452