Journal
OPTICS EXPRESS
Volume 17, Issue 11, Pages 9391-9400Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.009391
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Funding
- Conseil General de l'Essonne
- EURYI
- French National Research Agency
- Centre de Comptence NanoSciences Ile-de-France
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Surface plasmons are electromagnetic waves originating from electrons and light oscillations at metallic surfaces. Since freely propagating light cannot be coupled directly into surface-plasmon modes, a compact, semiconductor electrical device capable of generating SPs on the device top metallic surface would represent an advantage: not only SP manipulation would become easier, but Au-metalized surfaces can be easily functionalized for applications. Here, we report a demonstration of such a device. The direct proof of surface-plasmon generation is obtained with apertureless near-field scanning optical microscopy, which detects the presence of an intense, evanescent electric field above the device metallic surface upon electrical injection. (C) 2009 Optical Society of America
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