OPTICAL 3RD-HARMONIC GENERATION IN SUBSTITUTED POLY(PHENYLACETYLENES) AND POLY(3-DECYLTHIOPHENES)

被引：25

作者：

NEHER, D ^{[1
]}

WOLF, A ^{[1
]}

LECLERC, M ^{[1
]}

KALTBEITZEL, A ^{[1
]}

BUBECK, C ^{[1
]}

WEGNER, G ^{[1
]}

机构：

[1] MAX PLANCK INST POLYMER RES,W-6500 MAINZ,GERMANY

来源：

SYNTHETIC METALS | 1990年 / 37卷 / 1-3期

关键词：

D O I：

10.1016/0379-6779(90)90151-A

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have performed third-harmonic generation measurements at λ0 = 1064 nm on ultrathin films of substituted poly(phenylacetylenes) and three forms of poly(3-decylthiophene). Both the absolute values and the phases of χ(3) have been estimated. The average values of the nonlinear susceptibility χ(3)(-3ω; ω, ω, ω) were found to be between 1.3 ± 0.3 × 10-12 and 1.3 ± 0.3 × 10-11 e.s.u. for substituted poly(phenylacetylenes) and around 1.0 × 10-11 e.s.u. for three neutral forms of poly(3-decylthiophene). Evaluation of the phases of χ(3) indicates that the two-photon resonance levels are located slightly differently with respect to the main absorption band in the two polymeric systems. © 1990.

引用

页码：249 / 253

页数：5

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