Generation of Traveling Surface Plasmon Waves by Free-Electron Impact
| Autor: | Nikolay I. Zheludev, Alexey V. Krasavin, M.V. Bashevoy, Yifang Chen, Fredrik Jonsson, Mark I. Stockman |
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| Rok vydání: | 2006 |
| Předmět: |
Free electron model
FOS: Physical sciences Physics::Optics Electrons Bioengineering Electron Grating Radiation Dosage Scattering Radiation Computer Simulation General Materials Science Radiometry Plasmon Physics Photons Mechanical Engineering Surface plasmon General Chemistry Decoupling (cosmology) Surface Plasmon Resonance Condensed Matter Physics Nanostructures Models Chemical Cathode ray Gold Atomic physics Excitation Physics - Optics Optics (physics.optics) |
| Zdroj: | Nano Letters. 6:1113-1115 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/nl060941v |
| Popis: | The injection of a beam of free 50 keV electrons into an unstructured gold surface creates a highly localized source of traveling surface plasmons with spectra centered below the surface plasmon resonance frequency. The plasmons were detected by a controlled decoupling into light with a grating at a distance from the excitation point. The dominant contribution to the plasmon generation appears to come from the recombination of d-band holes created by the electron beam excitation. |
| Databáze: | OpenAIRE |
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