Design and synthesis of heterocyclic multi-branched dyes for two-photon absorption

被引：22

作者：

Abbotto, A

Beverina, L

Bradamante, S

Facchetti, A

Pagani, GA

Bozio, R

Ferrante, C

Pedron, D

Signorini, R

机构：

[1] Univ Milan, Dept Mat Sci, I-20125 Milan, Italy

[2] Univ Milan, INSTM, I-20125 Milan, Italy

[3] CNR, Inst Mol Sci & Technol, I-20133 Milan, Italy

[4] Univ Padua, Dept Chem Phys, I-35131 Padua, Italy

[5] Univ Padua, INSTM, I-35131 Padua, Italy

来源：

SYNTHETIC METALS | 2003年 / 139卷 / 03期

关键词：

multiphoton absorption spectroscopy; heterocycle synthesis; laser spectroscopy; non-linear optical methods;

D O I：

10.1016/S0379-6779(03)00281-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the first example of a heterocycle-based multi-branched two-photon absorption (TPA) dye. We show that the new chromophore presents a very large TPA cross-section in the femtoseconds (fs) regime. Comparison of the TPA cross-sections between the branched system and the corresponding "monomeric unit" shows a strong cooperative enhancement. A value of 22.6:1, corresponding to a 750% enhancement, was observed. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：795 / 797

页数：3

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