Extreme super-resolution using the spherical geodesic waveguide

Miñano Dominguez, Juan Carlos and Gonzalez Lopez, Juan Carlos and Benitez Gimenez, Pablo and Grabovičkić, Dejan (2012). Extreme super-resolution using the spherical geodesic waveguide. In: "Optical Modelling and Design II. Proceedings of SPIE", 16/04/2012, Brussels, Belgium.

Description

Title: Extreme super-resolution using the spherical geodesic waveguide
Author/s:
  • Miñano Dominguez, Juan Carlos
  • Gonzalez Lopez, Juan Carlos
  • Benitez Gimenez, Pablo
  • Grabovičkić, Dejan
Item Type: Presentation at Congress or Conference (Article)
Event Title: Optical Modelling and Design II. Proceedings of SPIE
Event Dates: 16/04/2012
Event Location: Brussels, Belgium
Title of Book: Optical Modelling and Design II. Proceedings of SPIE
Date: 2012
Volume: 8429
Subjects:
Freetext Keywords: Super-resolution, Perfect Imaging, Maxwell Fish Eye, Spherical Geodesic Waveguide, Perfect Drain
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Leonhardt demonstrated (2009) that the 2D Maxwell Fish Eye lens (MFE) can focus perfectly 2D Helmholtz waves of arbitrary frequency, i.e., it can transport perfectly an outward (monopole) 2D Helmholtz wave field, generated by a point source, towards a "perfect point drain" located at the corresponding image point. Moreover, a prototype with λ/5 superresolution (SR) property for one microwave frequency has been manufactured and tested (Ma et al, 2010). Although this prototype has been loaded with an impedance different from the "perfect point drain", it has shown super-resolution property. However, neither software simulations nor experimental measurements for a broad band of frequencies have yet been reported. Here we present steady state simulations for two cases, using perfect drain as suggested by Leonhardt and without perfect drain as in the prototype. All the simulations have been done using a device equivalent to the MFE, called the Spherical Geodesic Waveguide (SGW). The results show the super-resolution up to λ/3000, for the system loaded with the perfect drain, and up to λ/500 for a not perfect load. In both cases super-resolution only happens for discrete number of frequencies. Out of these frequencies, the SGW does not show super-resolution in the analysis carried out.

More information

Item ID: 20958
DC Identifier: http://oa.upm.es/20958/
OAI Identifier: oai:oa.upm.es:20958
Deposited by: Memoria Investigacion
Deposited on: 16 Oct 2013 16:02
Last Modified: 21 Apr 2016 11:04
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