NONLINEAR-OPTICAL SPECTROSCOPY ON POLYSILANES - DEPENDENCE OF EXCITON-STATES ON POLYMER BACKBONE CONFORMATIONS

被引：13

作者：

HASEGAWA, T

IWASA, Y

KODA, T

KISHIDA, H

TOKURA, Y

WADA, S

TASHIRO, H

TACHIBANA, H

MATSUMOTO, M

MILLER, RD

机构：

[1] UNIV TOKYO,DEPT APPL PHYS,TOKYO 113,JAPAN

[2] JAPAN WOMENS UNIV,DEPT PHYS & MATH SCI,TOKYO 112,JAPAN

[3] UNIV TOKYO,DEPT PHYS,TOKYO 113,JAPAN

[4] INST PHYS & CHEM RES,LASER SCI GRP,WAKO,SAITAMA 351,JAPAN

[5] NATL INST MAT & CHEM RES,TSUKUBA,IBARAKI 305,JAPAN

[6] IBM CORP,ALMADEN RES LAB,SAN JOSE,CA 95120

来源：

SYNTHETIC METALS | 1995年 / 71卷 / 1-3期

关键词：

D O I：

10.1016/0379-6779(94)03000-V

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The third-order nonlinear optical (NLO) susceptibility chi((3))(-3 omega; omega, omega, omega) have been measured on spin-coated films of three kinds of polysilanes (PS's) with various backbone conformations, in a wide range of fundamental wavelength, by means of third-harmonic generation (THG) measurement. The experimental results show that their quasi-one-dimensional (Q1D) exciton level structures and their optical nonlinearity systematically change, with their backbone conformation changes. As compared with the theoretical calculation by 1D exciton model, the experimental feature indicates that the on-site electron correlation takes important roles in Q1D exciton states of PS's.

引用

页码：1679 / 1680

页数：2

共 6 条

[1] NONLINEAR OPTICAL SUSCEPTIBILITIES OF POLYSILANES - EXCITON EFFECT [J].