Observatorio de I+D+i UPM

Memorias de investigación
Conferences:
Extreme super-resolution using the spherical geodesic waveguide
Year:2012
Research Areas
  • Engineering
Information
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 ?/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 ? /3000, for the system loaded with the perfect drain, and up to ? /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.
International
Si
9780819491213
Entity
Optical Modelling and Design II Proceedings of SPIE Volume 8429
Entity Nationality
Sin nacionalidad
Place
Bruselas, Belgica
Participants
  • Autor: Juan Carlos Miñano Dominguez (UPM)
  • Autor: Juan Carlos Gonzalez Lopez (UPM)
  • Autor: Pablo Benitez Gimenez (UPM)
  • Autor: Dejan Grabovickic . (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
  • Departamento: Electrónica Física
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Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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