Access Restriction

Author Stefaniuk, T. ♦ Wrobel, P. ♦ Antosiewicz, T.J. ♦ Szoplik, T.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2012
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Lenses ♦ Silver ♦ Plasmons ♦ Optical surface waves ♦ Dielectrics ♦ Optical diffraction ♦ metal-dielectric multilayers ♦ plasmonics ♦ plasmonic superlenses
Abstract We report on recent progress made in the development of plasmonic nanolenses. These lenses exhibit intensity transmittance close to 80%, focal lengths equal to one or more wavelengths, and foci with full-widths at halfmaximum close to the diffraction limit. We consider lenses in the form of (i) a silver layer with no hole on the optical axis and double-sided concentric corrugations, (ii) a silver layer with no hole on the axis and single-sided corrugations, and (iii) a lens composed of several concentric metallic rings and on-axis stop with external layer of transparent dielectric that integrates all elements. Investigations are carried out using the Finite-Difference Time-Domain method and the Transfer Matrix Method. The nanolenses are diffractive optical elements that concentrate radially polarized Laguerre-Gauss illumination as tightly as high-NA refractive optical systems.
Description Author affiliation: University of Warsaw, Faculty of Physics, Pasteura 7, 02-093 Warsaw, Poland (Stefaniuk, T.; Wrobel, P.; Szoplik, T.) || Chalmers University of Technology, Department of Applied Physics, SE-412 96 Gothenburg, Sweden (Antosiewicz, T.J.)
ISBN 9781467322287
ISSN 21612064
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2012-07-02
Publisher Place United Kingdom
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781467322294
Size (in Bytes) 412.30 kB
Page Count 4
Starting Page 1
Ending Page 4

Source: IEEE Xplore Digital Library