Plasmonic nanostructures for local field enhancement in the UV region

    Authors

    A. S. Shalin; S. V. Sukhov; A. E. Krasnok;S. A. Nikitov

    Comments

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    Abbreviated Journal Title

    Photonics Nanostruct.

    Keywords

    Plasmonic nanostructures; Ultraviolet; Local field enhancement; OPTICAL ANTENNA; NANOPARTICLES; GROOVES; DIMERS; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Optics; Physics, Applied

    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 350 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. (c) 2013 Elsevier B.V. All rights reserved.

    Journal Title

    Photonics and Nanostructures-Fundamentals and Applications

    Volume

    12

    Issue/Number

    1

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    2

    Last Page

    8

    WOS Identifier

    WOS:000332593700001

    ISSN

    1569-4410

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