Plasmon Resonance in Silver Nanoparticles Arrays Grown by Atomic Terrace Low-Angle Shadowing

详细信息    查看全文

• 作者：Floriano Cuccureddu ; Shane Murphy ; Igor V. Shvets ; Mauro Porcu ; H. W. Zandbergen
• 刊名：Nano Letters
• 出版年：2008
• 出版时间：October 8, 2008
• 年：2008
• 卷：8
• 期：10
• 页码：3248-3256
• 全文大小：393K
• 年卷期：v.8,no.10(October 8, 2008)
• ISSN：1530-6992

文摘

The plasmonic properties of aligned silver nanoparticles grown by atomic terrace low-angle shadowing (ATLAS) were studied by optical transmission spectroscopy. ATLAS is a novel nanofabrication technique that combines the advantages of self-assembly with control of the nanostructure features. The silver nanoarrays were optically characterized and distinct optical responses with strong polarization dependence were obtained indicating the existence of a strong near-field coupling between the particles. We found that different morphologies gave rise to a similar optical response due to the local contributions to the overall response. Numerical model based on discrete dipole approximation was used to give a qualitative insight into the studied phenomena.