Extreme super-resolution using the spherical geodesic waveguide

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

Descripción

Título: Extreme super-resolution using the spherical geodesic waveguide
Autor/es:
  • Miñano Dominguez, Juan Carlos
  • Gonzalez Lopez, Juan Carlos
  • Benitez Gimenez, Pablo
  • Grabovičkić, Dejan
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Optical Modelling and Design II. Proceedings of SPIE
Fechas del Evento: 16/04/2012
Lugar del Evento: Brussels, Belgium
Título del Libro: Optical Modelling and Design II. Proceedings of SPIE
Fecha: 2012
Volumen: 8429
Materias:
Palabras Clave Informales: Super-resolution, Perfect Imaging, Maxwell Fish Eye, Spherical Geodesic Waveguide, Perfect Drain
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Electrónica Física
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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.

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ID de Registro: 20958
Identificador DC: http://oa.upm.es/20958/
Identificador OAI: oai:oa.upm.es:20958
Depositado por: Memoria Investigacion
Depositado el: 16 Oct 2013 16:02
Ultima Modificación: 21 Abr 2016 11:04
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