Surface Plasmon Mediated Interference Phenomena in Low-Q Silver Nanowire Cavities

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• 作者：Marco Allione ; Vasily V. Temnov ; Yuri Fedutik ; Ulrike Woggon ; Mikhail V. Artemyev
• 刊名：Nano Letters
• 出版年：2008
• 出版时间：January 2008
• 年：2008
• 卷：8
• 期：1
• 页码：31 - 35
• 全文大小：233K
• 年卷期：v.8,no.1(January 2008)
• ISSN：1530-6992

文摘

Optical excitation of surface plasmons in wet-chemically grown monocrystalline silver nanowires (~100 nm diameter and up to a few tens ofmicrometers length) is studied by broadband imaging spectroscopy. Surface plasmons excited by an incident light beam in the so-calledKretschmann-Raether configuration give optical interference phenomena in the spectral domain. These spectral oscillations are interpretedin terms of Fabry-Perot cavity modes for surface plasmons in silver nanowires and allow for a direct experimental determination of thesurface plasmon group velocity and cavity losses.