ELECTRIC-FIELD-INDUCED 2ND-HARMONIC GENERATION MEDIATED BY ONE-DIMENSIONAL EXCITONS IN POLYSILANES

被引：27

作者：

KISHIDA, H

HASEGAWA, T

IWASA, Y

KODA, T

TOKURA, Y

TACHIBANA, H

MATSUMOTO, M

WADA, S

LAY, TT

TASHIRO, H

机构：

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

[2] JRCAT,TSUKUBA,IBARAKI 305,JAPAN

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

[4] RIKEN,INST PHYS & CHEM RES,WAKO,SAITAMA 35101,JAPAN

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.50.7786

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The third-order nonlinear-susceptibility chi((3)) (- 2 omega; omega, omega, 0) spectrum has been investigated for thin films of linear-Si-chain compounds, poly(dihexylsilane), by measurements of electric-field-induced second-harmonic generation (EFISHG). In the chi((3)) spectrum for EFISHG, two-photon resonance structures to the first and second levels of one-dimensional excitons were observed. The observed chi((3)) spectrum can be accounted for by considering multiple optical processes in the one-dimensional excitonic series characteristic of the Si-chain system.

引用

页码：7786 / 7792

页数：7

共 21 条

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