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Three-photon up-conversion lasing of a novel multibranched nonlinear chromophore in doped poly(methyl methacrylate)

FUQUAN GUO1,* , FUCHUN XIE1, YINGYING LI1, XINJUN ZHU1, HAO LIANG2, BIN GUO3

Affiliation

  1. School of Materials Science and Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, P.R. China
  2. Department of Chemical Engineering, Huizhou University, Huizhou, 516007, P.R. China
  3. College of Science, Nanjing Forestry University, Nanjing 210037, P.R. China

Abstract

A novel nonlinear chromophore, 4, 4´, 4´´-tris((3,6-di-tert-butyl)-9-carbazyl-(9,9-dioctyl)-2,7-fluorenylidene-vinylidene) triphenylamine (TCFVTPA), which possesses multibranched molecular structure and extended coplanar conjugation length, has been designed, synthesized and characterized. One-photon induced photophysical properties were studied in 1×10-5 mol/L chloroform solution. Three-photon induced fluorescence was obtained in poly(methylmethacryate) (PMMA) with the doped concentration of 1×10-2 mol/L pumped by a femtosecond laser system at 1300nm and the correspoding cross-section of TCFVTPA was measured as 8.3×10-75 cm6 s2 by nonlinear transmission method. When the energy of input irradiation excceds a certain value of 0.3 μJ, three-photon induced up-conversion lasing occurs with the spectral width of ~7 nm and the net up-conversion efficiency of 1.54%..

Keywords

Three-photon absorption, Nonlinear chromophore, Up-conversion lasing.

Citation

FUQUAN GUO, FUCHUN XIE, YINGYING LI, XINJUN ZHU, HAO LIANG, BIN GUO, Three-photon up-conversion lasing of a novel multibranched nonlinear chromophore in doped poly(methyl methacrylate), Optoelectronics and Advanced Materials - Rapid Communications, 10, 7-8, July-August 2016, pp.459-463 (2016).

Submitted at: Feb. 9, 2014

Accepted at: Aug. 3, 2016