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A novel multibranched chromophore doped polymer as two-photon optical limiter

F. Q. GUO1,2,* , B. GUO3, Z. Y. HU1, B. CHEN2, Q. J. ZHANG2

Affiliation

  1. Department of Material Engineering, Luoyang College of Technology, Luoyang 471002, P.R.China
  2. College of Information Science and Technology, Nanjing Forestry University, Nanjing 210037, P.R.China
  3. Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, P.R.China

Abstract

A novel multibranched nonlinear chromophore，4, 4´, 4´´-tris(9-carbazyl-trans-styryl) triphenylamine (TCSTPA)，has been synthesized and doped in polymethylmethacryate (PMMA) as a passive optical limiter. One-photon and two-photon absorption (TPA) optical properties were demonstrated in solution and doped polymer, respectively. When pumped with a femtosecond laser, remarkable two-photon induced optical limiting behavior was observed and a large TPA cross section of 2.35×10-47 cm4 s photon-1 molecule-1 was obtained at 800 nm..

Keywords

Multibranched chromophore, Two-photon absorption, Optical limiting.

Submitted at: Feb. 7, 2007
Accepted at: July 15, 2007

Citation

F. Q. GUO, B. GUO, Z. Y. HU, B. CHEN, Q. J. ZHANG, A novel multibranched chromophore doped polymer as two-photon optical limiter, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 7, pp. 2152-2155 (2007)