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Proceedings Paper

Large third-order optical nonlinearity and very fast response of cyanine-dye-doped thin films measured by resonant femtosecond DFWM technique
Author(s): Kazuo Kasatani
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Paper Abstract

The third-order optical nonlinearity and response of polyvinyl alcohol coating films containing a cyanine dye called NK-2612 or NK-3261, were measured by the femtosecond degenerate four-wave mixing (DFWM) technique under resonant conditions. Temporal profiles of the DFWM signal were measured with a time resolution of 0.3 ps, and were found to consist of at least two components, the coherent instantaneous nonlinear response and the delayed response. It was demonstrated that the latter can be adjusted by the concentration of dye in thin films, and very fast nonlinear optical response was observed at high dye concentration. The electronic component of the effective optical nonlinear susceptibility, Iχ(3)eI, of one of the present films was as high as ca. 1.3 × 10-8 esu (1.8 × 10-16 m2 V-2 in SI) at 760 nm.

Paper Details

Date Published: 17 September 2002
PDF: 8 pages
Proc. SPIE 4918, Materials, Devices, and Systems for Display and Lighting, (17 September 2002); doi: 10.1117/12.483082
Show Author Affiliations
Kazuo Kasatani, Yamaguchi Univ. (Japan)

Published in SPIE Proceedings Vol. 4918:
Materials, Devices, and Systems for Display and Lighting
Fuxi Gan; Ming Hsien Wu; Lionel C. Kimerling, Editor(s)

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