NONLINEAR OPTICAL-PROPERTIES OF SUBLIMED C-60 THIN-FILMS

被引：26

作者：

KAJZAR, F ^{[1
]}

TALIANI, C ^{[1
]}

ZAMBONI, R ^{[1
]}

ROSSINI, S ^{[1
]}

DANIELI, R ^{[1
]}

机构：

[1] CNR,IST SPETTROSCOPIA MOLEC,I-40126 BOLOGNA,ITALY

来源：

SYNTHETIC METALS | 1993年 / 54卷 / 1-3期

关键词：

D O I：

10.1016/0379-6779(93)91042-Z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Results of optical second-harmonic generation and wave-dispersed third-harmonic generation measurements in C60 thin films are reported and discussed. In third-harmonic generation measurements two strong resonances in cubic susceptibility chi(3)(-3omega; omega, omega, omega) are observed. The first one occurring at 1.3 mum fundamental wavelength is interpreted in terms of a three-photon resonance with vibronic components of gerade states made partially allowed by vibronic mixing with the higher T1u state. The second resonance at 1.064 mum is interpreted as a three-photon resonance with the T1u state. The measured resonant values of chi(3)(-3omega; omega, omega, omega) are 6.1 x 10(-11) and 8.2 x 10(-11) e.s.u. at 1.3 and 1.064 mum, respectively. The second-harmonic generation measurements performed at 1.064 mum on native thin films lead to a significant second-order susceptibility dpp(-2omega; omega, omega) = 3.8 x 10(-9) e.s.u. (1.6 pm/V).

引用

页码：21 / 32

页数：12

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