Nonlinear optical response from excitons in C60, C70, and higher fullerenes

被引：6

作者：

Harigaya, K ^{[1
]}

机构：

[1] Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan

来源：

JOURNAL OF LUMINESCENCE | 1998年 / 76-7卷

关键词：

nonlinear optical response; excitons; higher fullerenes;

D O I：

10.1016/S0022-2313(97)00262-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Nonlinear optical properties in the fullerene C-60 and the extracted higher fullerenes - C-70, C-76, C-78 and C-84 - are theoretically investigated. Magnitudes of off-resonant third-order susceptibility are calculated by the exciton formalism and the sum-over-states method. We find that optical nonlinearities of higher fullerenes are a few Limes larger than those of C-60. The magnitudes of nonlinearity tend to increase as the optical gap decreases in higher fullerenes. Relations with experiments are discussed. (C) 1998 Elsevier Science B.V. All rights reserved.

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收藏

页码：652 / 654

页数：3

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