PROTON-TRANSFER LASERS FROM SOLID POLYMERIC CHAINS WITH COVALENTLY BOUND 2-(2'-HYDROXYPHENYL)BENZIMIDAZOLE GROUPS

被引：69

作者：

FERRER, ML

ACUNA, AU

AMATGUERRI, F

COSTELA, A

FIGUERA, JM

FLORIDO, F

SASTRE, R

机构：

[1] CSIC, INST CIENCIA & TECNOL POLIMEROS, E-28006 MADRID, SPAIN

[2] CSIC, INST QUIM ORGAN, E-28006 MADRID, SPAIN

来源：

APPLIED OPTICS | 1994年 / 33卷 / 12期

关键词：

SOLID DYE LASERS; PROTON-TRANSFER LASERS;

D O I：

10.1364/AO.33.002266

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The lasing properties of a number of newly synthesized 2-(2'-hydroxyphenyl)benzimidazole derivatives copolymerized with methyl methacrylate or dissolved in poly(methyl methacrylate) and pumped with an N2 laser are reported. The radiation mechanism is based on the intramolecular proton-transfer in the electronic excited state. Both the lasing efficiency and the dye photostability increase significantly when the proton-transfer chromophore is covalently bound to the polymeric chain, and energy-conversion efficiencies comparable to those obtained in liquid solution are demonstrated.

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页码：2266 / 2272

页数：7

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