Intensive two-photon absorption in nonether polyphenylquinoxaline (PPQ) conjugated polymeric film

Jianhua Liu; Heyuan Zhu; Yimei Hu; Diechi Sun; Fuming Li; Meng Sun

doi:10.1117/12.386383

19 May 2000 Intensive two-photon absorption in nonether polyphenylquinoxaline (PPQ) conjugated polymeric film

Jianhua Liu, Heyuan Zhu, Yimei Hu, Diechi Sun, Fuming Li, Meng Sun

Proceedings Volume 3939, Organic Photonic Materials and Devices II; (2000) https://doi.org/10.1117/12.386383
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States

Abstract

Two photon absorption (TPA) with the TPA coefficient (beta) equals 0.59 cm/MW was obtained for polyphenylquinoxaline film by using Z-scan technique at 532 nm wavelength of a passively mode-locked Nd:YAG laser. This was, to our knowledge, the largest ultrafast TPA in conjugated polymers ever reported. And it was shown that the corresponding imaginary part of the third order optical susceptibility (chi) ⁽³) shared an equivalent importance with the real part. The resultant value of (chi) ⁽³), 2.4 X 10^-10 esu, was in a good agreement with the reported value.

Citation Download Citation

Jianhua Liu, Heyuan Zhu, Yimei Hu, Diechi Sun, Fuming Li, and Meng Sun "Intensive two-photon absorption in nonether polyphenylquinoxaline (PPQ) conjugated polymeric film", Proc. SPIE 3939, Organic Photonic Materials and Devices II, (19 May 2000); https://doi.org/10.1117/12.386383

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