DISPERSION MEASUREMENTS OF THE 3RD-ORDER NONLINEAR SUSCEPTIBILITY OF POLYTHIOPHENE THIN-FILMS

被引：99

作者：

TORRUELLAS, WE

NEHER, D

ZANONI, R

STEGEMAN, GI

KAJZAR, F

LECLERC, M

机构：

[1] CENS,CEA,IRDI,DEIN,LPEM,F-91191 GIF SUR YVETTE,FRANCE

[2] OKLAHOMA STATE UNIV,CTR LASER RES,STILLWATER,OK 74078

[3] UNIV CENT FLORIDA,CREOL,ORLANDO,FL 32826

[4] UNIV MONTREAL,DEPT CHEM,MONTREAL H3C 3J7,QUEBEC,CANADA

来源：

CHEMICAL PHYSICS LETTERS | 1990年 / 175卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(90)85510-J

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：

Both the magnitude and phase of the third-order nonlinear susceptibility of poly(3-butylthiophene) and poly(3-decylthiophene) have been measured with third harmonic generation in the range of 953.5 to 1904 nm. In this spectral region, the dispersion of the cubic susceptibility is explained by the presence of two-photon states located on each side of the lowest state allowed for one-photon transitions, 1Bu. The coupling between the 1Bu state and the 1Ag excited state centered 5000 cm-1 above it strongly dominates the dispersion of the χ(3)0(3ω). © 1990.

引用

页码：11 / 16

页数：6

共 20 条

[1]

CHOLLET PA, 1989, NONLINEAR OPTICS ORG

[2] NONLINEAR-OPTICAL RESPONSE IN POLYTHIOPHENE FILMS USING 4-WAVE MIXING TECHNIQUES [J].