| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 7, 2012
|
|
|---|---|---|
| Article Number | 12025 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.2971/jeos.2012.12025 | |
| Published online | 03 July 2012 | |
Regular papers
Local field enhancement of nano-structured metallic target irradiated by polarized laser beam
1
Department of Physics, Iran University of Science and Technology, Narmak, Tehran, Iran
2
present address: Department of Physics, University of Zanjan, P.O.Box 45196-313, Zanjan, Iran
Received:
26
December
2011
Revised:
30
April
2012
The local field enhancement is studied numerically in samples of metallic nanoparticles (NPs) randomly distributed over a metallic substrate. The sample was assumed to be irradiated by polarized laser beam. Based on dipole-dipole approximation (DDA), the electric field was calculated Two-dimensionally at the irradiated region. The results show that the optimized field enhancement is strongly depends on NPs characteristics, beam polarization and incident angle.
Key words: field enhancement / polarization / surface plasmons
© The Author(s) 2012. All rights reserved.
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