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

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

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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