DISPERSION OF THE 3RD-ORDER OPTICAL NONLINEARITY OF C-60 - A 3RD-HARMONIC GENERATION STUDY

被引：155

作者：

METH, JS

VANHERZEELE, H

WANG, Y

机构：

[1] Central Research and Development, Du Pont Co., Wilmington, DE 19880-0356

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 197卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(92)86016-B

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 report the \chi(3)(-3-omega; omega, omega, omega)\ of a thin film of polycrystalline C60 on glass measured over the fundamental energy range of 0.52-1.18 eV. The dispersion clearly shows a three-photon resonance at HBAR-omega=0.94 eV, whose third-harmonic energy corresponds to the dipole allowed transition at 2.8 eV in the solid C60. The dispersion can be fit by a two-level model, and a good correlation exists between the nonlinearity and the linear optical absorption spectrum. Away from resonance, \chi(3)(-3-omega; omega, omega, omega) \= (4.1 +/- 0.6) x 10(-12) esu, while at the peak, \chi(3)(-3-omega; omega, omega, omega)\ = (2.7 +/- 0.4) x 10(-11) esu.

引用

页码：26 / 31

页数：6

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