Electroabsorption in C-60 and C-70. Third-order nonlinearity in molecular and solid states

被引：40

作者：

Hess, BC ^{[1
]}

Bowersox, DV ^{[1
]}

Mardirosian, SH ^{[1
]}

Unterberger, LD ^{[1
]}

机构：

[1] CALIF STATE UNIV FRESNO,DEPT PHYS,FRESNO,CA 93740

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 248卷 / 3-4期

关键词：

D O I：

10.1016/0009-2614(95)01286-9

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：

We have studied electroabsorption (EA) in both films and dispersed molecules of C-60 and C-70. In contrast to a recent model for the third harmonic generation (THG) spectrum, we find that the two-photon states important to the nonresonant chi((3))(0) in molecular C-60 are above the 3.6 eV T-1u state, not below it. We present a model consistent with spectra of EA, THG and degenerate four-wave mixing (DFWM). The lowest-energy resonances in chi((3))(omega) are dominated by 'forbidden' transitions made allowed by vibronic coupling in the molecule and intermolecular coupling in the solid.

引用

页码：141 / 146

页数：6

共 26 条

[1]

ABE S, RELAXATION POLYM

[2]

ABE Shinzo, COMMUNICATION

[3] DEGENERATE 4-WAVE-MIXING AS A NONLINEAR-OPTICAL PROBE OF THE FULLERENES [J].

FLOM, SR ;

PONG, RGS ;

BARTOLI, FJ ;

KAFAFI, ZH .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1994, 256 :289-298

[4] THE MAGNETIC CIRCULAR-DICHROISM AND ABSORPTION-SPECTRA OF C60 ISOLATED IN AR MATRICES [J].

GASYNA, Z ;

SCHATZ, PN ;

HARE, JP ;

DENNIS, TJ ;

KROTO, HW ;

TAYLOR, R ;

WALTON, DRM .

CHEMICAL PHYSICS LETTERS, 1991, 183 (3-4) :283-291

[5] PHOTOCHEMISTRY OF FULLERENES - EXCITED-STATE BEHAVIOR OF C-60 AND C-70 AND THEIR REDUCTION IN POLY(METHYL METHACRYLATE) FILMS [J].

GEVAERT, M ;

KAMAT, PV .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (24) :9883-9888

[6]

GUO D, 1993, ORGANIC MATERIALS NO, P13

[7]

GUO DD, 1993, SYNTHETIC MET, V57, P3881

[8]

HARIGAYA K, IN PRESS J LUMINESCE

[9]

HARIGAYA K, 1992, JPN J APPL PHYS, V31, pL227

[10]

HARIGAYA K, IN PRESS MACROMOL

← 1 2 3 →