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Proceedings Paper

Third-order nonlinear optical properties and photophysical mechanism of a novel In-porphyrin polymer
Author(s): Kaizao Ni; Dajun Liu; Zhongguo Li; Zhengguo Xiao; Junyi Yang; Yinglin Song
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Paper Abstract

We use the time-resolved degenerated PO pump-probe technique to investigate the nonlinear absorption and nonlinear refraction dynamics of a novel porphyrin derivate, Indium-Porphyrin functionalized with polymethylmethacrylate (InPor-MMA26), dissolved in DMF at 532 nm in picosecond domain simultaneously. The results indicate that the nonlinear optical responses are induced by solution molecular excited state nonlinearity only, without the existence of two-photon absorption or Kerr refraction. Combined with five-energy-level model, all nonlinear optical parameters are determined by analyzing the experimental curves and confirmed by 4 ns Z-scan at 532 nm. The sample has a good reverse saturable absorption and reasonable positive refraction. With the proper lifetime and intersystem crossing time, this sample can be a candidate for optical limiting. The polymer attached to porphyrin directly by chemical bonds. This makes it have better homogeneity compared to physical mixing in the form of film.

Paper Details

Date Published: 3 December 2014
PDF: 7 pages
Proc. SPIE 9297, International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors, 92971N (3 December 2014); doi: 10.1117/12.2073005
Show Author Affiliations
Kaizao Ni, Soochow Univ. (China)
Dajun Liu, Changchun Univ. of Science and Technology (China)
Zhongguo Li, Harbin Institute of Technology (China)
Zhengguo Xiao, Harbin Institute of Technology (China)
Junyi Yang, Soochow Univ. (China)
Yinglin Song, Soochow Univ. (China)
Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 9297:
International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors
Jurgen Czarske; Shulian Zhang; David Sampson; Wei Wang; Yanbiao Liao, Editor(s)

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