Memorias de investigación
Conferencias:
Extreme super-resolution using the spherical geodesic waveguide
Año:2012
Áreas de investigación
  • Ingenierías
Datos
Descripción
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.
Internacional
Si
ISSN o ISBN
9780819491213
Entidad relacionada
Optical Modelling and Design II Proceedings of SPIE Volume 8429
Nacionalidad Entidad
Sin nacionalidad
Lugar del congreso
Bruselas, Belgica
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
  • Departamento: Electrónica Física