Nonlinear optical properties of oligothiophene self-assembled monolayers on gold substrate

被引：0
|
作者：
Tamura, T [1 ]
Mishina, E [1 ]
Miyakita, Y [1 ]
Yu, QK [1 ]
Nakabayashi, S [1 ]
机构：
[1] Saitama Univ, Fac Sci, Dept Chem, Urawa, Saitama 3388570, Japan
来源：
EPIOPTICS-7, PROCEEDINGS | 2004年 / 23卷
关键词：
D O I：
10.1142/9789812702982_0007
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Liner and nonlinear-optical proper-ties of oligothiophenes self-assembled monolayers (SAM) are studied by optical second harmonic interference technique. Linear polarizability and first hyperpolarizability as functions of the number of thiophene rings are calculated using a self-consistent approach for linear and nonlinear optical properties. Both of these dependencies can be described by a power law; a nonzero first hyperpolarizability points to the asymmetry of delocalized electron system that might be due to an adsorption of thiophene molecules on a metal substrate.
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页码：80 / 85
页数：6
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