| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1443879 | Synthetic Metals | 2006 | 5 Pages |
Abstract
This paper presents of a new, conjugated and symmetric multi-branched two-photon absorption chromophore 1,2,4,5-tetrakis(4-N-methyl-N-hydroxyethylamino)vinylphenyl benzene (TKAVPB) with D-π-D structure. The new dye built on 1,2,4,5-benzene core with four amino-branching units, which allows efficient π-electron delocalization, exhibits moderate two-photon absorption (TPA) value in the femtoseconds regime (TPA cross-section as 97 × 10−50 cm4 s photon−1 molecule−1 with 200 fs laser pulses). Linear absorption, single and two-photon fluorescence spectra were experimentally studied. When pumped with 760 nm laser irradiation, TKAVPB shows strong two-photon up-conversion fluorescence with peak at 527 nm.
Keywords
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Authors
Lei Wang, Xu-Tang Tao, Jia-Xiang Yang, Gui-Bao Xu, Yan Ren, Yang Liu, Yun-Xing Yan, Zhi Liu, Min-Hua Jiang,