FEMTOSECOND RELAXATION OF PHOTOEXCITATIONS IN A SOLUTION OF A POLY(PARA-PHENYLENE)-TYPE LADDER POLYMER

被引：27

作者：

GRAUPNER, W

LEISING, G

LANZANI, G

NISOLI, M

DESILVESTRI, S

SCHERF, U

机构：

[1] UNIV SASSARI,IST MATEMAT & FIS,I-07100 SASSARI,ITALY

[2] POLITECN MILAN,DIPARTIMENTO FIS,CNR,CTR ELETTRON QUANTIST & STRUMENTAZ ELETTR,I-20133 MILAN,ITALY

[3] MAX PLANCK INST POLYMER RES,D-55128 MAINZ,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 246卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(95)01072-H

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The primary photoexcitations of a poly(para-phenylene)-type ladder polymer in toluene solution are studied by a time-resolved pump-and-probe technique. Upon exciting the sample with 120 fs pulses a strong stimulated emission is found with a decay time of 190 ps. The stimulated emission centered in the blue/green region at 490 nm shows no spectral overlap with the observed photoinduced absorption, which makes the m-LPPP a promising candidate as the active medium for laser applications.

引用

页码：95 / 100

页数：6

共 35 条

[1] FIRST-PRINCIPLES STUDIES OF THE STRUCTURAL AND OPTICAL-PROPERTIES OF CRYSTALLINE POLY(PARA-PHENYLENE) [J].