Nonlinear optical properties of interconnected gold nanoparticles on silicon

被引：6

作者：

Lesuffleur, Antoine ^{[1
]}

Gogol, Philippe ^{[1
]}

Beauvillain, Pierre ^{[1
]}

Guizal, B. ^{[2
]}

Van Labeke, D. ^{[2
]}

Georges, P. ^{[3
]}

机构：

[1] Univ Paris 11, CNRS, UMR 8622, Inst Elect Fondamentale, F-91405 Orsay, France

[2] Univ Franche Comte, CNRS, UMR 6174, Inst FEMTO ST, F-25030 Besancon, France

[3] CNRS, UMR 8501, RD128, Inst Opt, F-91127 Palaiseau, France

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 12期

关键词：

electric fields; elemental semiconductors; gold; nanoparticles; optical harmonic generation; silicon; surface plasmon resonance;

D O I：

10.1063/1.3050309

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report second harmonic generation (SHG) measurements in reflectivity from chains of gold nanoparticles interconnected with metallic bridges. We measured more than 30 times a SHG enhancement when a surface plasmon resonance was excited in the chains of nanoparticles, which was influenced by coupling due to the electrical connectivity of the bridges. This enhancement was confirmed by rigorous coupled wave method calculations and came from high localization of the electric field at the bridge. The introduction of 10% random defects into the chains of nanoparticles dropped the SHG by a factor of 2 and was shown to be very sensitive to the fundamental wavelength.

引用

页数：4

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