Analysis of second harmonic generation from the interface of CuttPc Langmuir-Blodgett film/metal

被引：0

作者：

Cheng, XM ^{[1
]}

Li, CQ ^{[1
]}

Manaka, T ^{[1
]}

Iwamoto, M ^{[1
]}

机构：

[1] Tianjin Inst Technol, Dept Optoelect Informat & Elect Engn, Tianjin 300191, Peoples R China

来源：

MATERIALS, DEVICES, AND SYSTEMS FOR DISPLAY AND LIGHTING | 2002年 / 4918卷

关键词：

SHG; phthalocyanine; LB film; interface; electrostatic phenomena;

D O I：

10.1117/12.483086

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Optical second harmonic generation (SHG) from the interface of the copper tetra-tert-butyl phthalocyanine (CuttbPc) Langmuir-Blodgett (LB) film / metals has been investigated. In spite of the existence of the inversion center, the enhancement of the signal intensity for CuttbPc/Al sample was also observed. In order to clarify the enhancement mechanism, a four-layer physical model is used to explain the nonlinear optical process. It is considered that the symmetry of the CuttbPc molecule is broken by the space charge induced electric field. The model calculations give a good agreement with experimental results. It was shown that electrostatic phenomena at the interface is correlated closely with SHG signal.

引用

页码：307 / 312

页数：6

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