Perfect imaging of point sources with positive refraction

Miñano Dominguez, Juan Carlos and Gonzalez Lopez, Juan Carlos and Benitez Gimenez, Pablo and Grabovičkić, Dejan (2012). Perfect imaging of point sources with positive refraction. In: "Metamaterials'2012: 6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Metamaterials 2012", 17/09/2012 - 22/09/2012, San Petersburgo, Rusia.

Description

Title: Perfect imaging of point sources with positive refraction
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: Metamaterials'2012: 6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Metamaterials 2012
Event Dates: 17/09/2012 - 22/09/2012
Event Location: San Petersburgo, Rusia
Title of Book: Metamaterials'2012: 6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Metamaterials 2012
Date: 2012
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The capability of a device called the Spherical Geodesic Waveguide (SGW) to produce images with details below the classic Abbe diffraction limit (super-resolution) is analyzed here. The SGW is an optical system equivalent (by means of Transformation Optics) to the Maxwell Fish Eye (MFE) refractive index distribution. Recently, it has been claimed that the necessary condition to get super-resolution in the MFE and the SGW is the use of a Perfect Point Drain (PPD). The PPD is a punctual receptor placed in the focal point that absorbs the incident wave, without reflection or scattering. A microwave circuit comprising three elements, the SGW, the source and the drain (two coaxial lines loaded with specific impedances) is designed and simulated in COMSOL. The super-resolution properties have been analyzed for different position of the source and drain and for two different load impedances: the PPD and the characteristic line impedance. The results show that in both cases super-resolution occurs only for discrete number of frequencies. Out of these frequencies, the SGW does not show SR in the analysis carried out.

More information

Item ID: 20931
DC Identifier: http://oa.upm.es/20931/
OAI Identifier: oai:oa.upm.es:20931
Deposited by: Memoria Investigacion
Deposited on: 14 Oct 2013 16:44
Last Modified: 21 Apr 2016 11:01
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