| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10641379 | Photonics and Nanostructures - Fundamentals and Applications | 2014 | 7 Pages |
Abstract
In this work we describe an ultraviolet subwavelength focusing in plasmonic nanostructures. A system which provides a 20-25 times local field enhancement at a wavelength of 350Â nm is proposed. This system represents a metalized V-shaped groove in a surface of a dielectric medium. Subwavelength focusing is achieved by a plasmon wave propagation along the surface of metal film and by the transfer of electromagnetic field through the dielectric medium. The influence of system parameters on a local field enhancement is investigated. A simplified model that allows for determining the geometric parameters of an optimized resonator is proposed.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
A.S. Shalin, S.V. Sukhov, A.E. Krasnok, S.A. Nikitov,