Excited-state enhancement of third-order optical nonlinearity in a PPV derivative

Guohong Ma; Lijun Guo; Jianhua Liu; Ye Liu; Jun Mi; Shixiong Qian; Gufeng He; Yongfang Li; Ronqiu Wang

doi:10.1117/12.408396

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29 November 2000 Excited-state enhancement of third-order optical nonlinearity in a PPV derivative

Guohong Ma, Lijun Guo, Jianhua Liu, Ye Liu, Jun Mi, Shixiong Qian, Gufeng He, Yongfang Li, Ronqiu Wang

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Proceedings Volume 4086, Fourth International Conference on Thin Film Physics and Applications; (2000) https://doi.org/10.1117/12.408396
Event: 4th International Conference on Thin Film Physics and Applications, 2000, Shanghai, China

Abstract

By using two-color femtosecond optically heterodyned optical Kerr effect experiment, we studied the real components of third-order nonlinearity of 2,5-dioctyloxy poly(p-phenylene vinylene) (DO-PPV). As pump wavelength was set near the absorption region of the material, the value of x⁽³) of DO-PPV was improved by one order of the magnitude comparing with that of nonresonant condition. We suggest that this enhancement result from the contribution of the excited state.

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Guohong Ma, Lijun Guo, Jianhua Liu, Ye Liu, Jun Mi, Shixiong Qian, Gufeng He, Yongfang Li, and Ronqiu Wang "Excited-state enhancement of third-order optical nonlinearity in a PPV derivative", Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); https://doi.org/10.1117/12.408396

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