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Title: Focusing properties of near-field time reversal

Abstract

A time-reversal mirror (TRM) is a plane apparatus that generates the time symmetric of a wave produced by an initial source. Here we look for the conditions to obtain subwavelength focusing when the initial source is in the near field of the TRM and the propagating medium is homogeneous and isotropic. Three variants of TRM are studied: TRM made of monopoles, dipoles, or both of them. The analysis is performed in terms of evanescent and propagative waves. We conclude that only the dipole-TRM leads to subwavelength focusing.

Authors:
;  [1]
  1. Laboratoire Ondes et Acoustique, CNRS/ESPCI/Universite Paris VII, UMR 7587, 10 rue Vauquelin, 75005 Paris (France)
Publication Date:
OSTI Identifier:
21140721
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 76; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevA.76.065801; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DIPOLES; EQUIPMENT; FOCUSING; IMAGE PROCESSING; IMAGES; LIGHT TRANSMISSION; MIRRORS; MONOPOLES

Citation Formats

Rosny, Julien de, and Fink, Mathias. Focusing properties of near-field time reversal. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.76.065801.
Rosny, Julien de, & Fink, Mathias. Focusing properties of near-field time reversal. United States. https://doi.org/10.1103/PHYSREVA.76.065801
Rosny, Julien de, and Fink, Mathias. 2007. "Focusing properties of near-field time reversal". United States. https://doi.org/10.1103/PHYSREVA.76.065801.
@article{osti_21140721,
title = {Focusing properties of near-field time reversal},
author = {Rosny, Julien de and Fink, Mathias},
abstractNote = {A time-reversal mirror (TRM) is a plane apparatus that generates the time symmetric of a wave produced by an initial source. Here we look for the conditions to obtain subwavelength focusing when the initial source is in the near field of the TRM and the propagating medium is homogeneous and isotropic. Three variants of TRM are studied: TRM made of monopoles, dipoles, or both of them. The analysis is performed in terms of evanescent and propagative waves. We conclude that only the dipole-TRM leads to subwavelength focusing.},
doi = {10.1103/PHYSREVA.76.065801},
url = {https://www.osti.gov/biblio/21140721}, journal = {Physical Review. A},
issn = {1050-2947},
number = 6,
volume = 76,
place = {United States},
year = {Sat Dec 15 00:00:00 EST 2007},
month = {Sat Dec 15 00:00:00 EST 2007}
}