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Article
Experimental Verification of Epsilon-Near-Zero Metamaterial Coupling and Energy Squeezing Using a Microwave Waveguide
Departmental Papers (ESE)
  • Brian Edwards, University of Pennsylvania
  • Andrea Alù, University of Pennsylvania
  • Michael E Young, University of Pennsylvania
  • Mário Silveirinha, Universidade de Coimbra
  • Nader Engheta, University of Pennsylvania
Document Type
Journal Article
Date of this Version
1-25-2008
Comments
Copyright American Physical Society. Published in Physical Review Letters, Volume 100, Issue 3, Article 033903, January 2008, 4 pages.
Publisher URL: http://dx.doi.org/10.1103/PhysRevLett.100.033903
Abstract

Utilizing a microwave setup, we experimentally verify our recently developed theory of energy squeezing and tunneling [Phys. Rev. Lett. 97, 157403 (2006)] through an ultranarrow waveguide channel that mimics zero-permittivity properties. Exploiting the infinite phase velocity supported by a waveguide transition section at cutoff, we test our theory of tunneling in this zero-permittivity region without use of resonant inclusions. This "supercoupling" is shown to have unique anomalous properties: an almost uniform phase along the narrow channel and weak dependence over its geometry.

Keywords
  • electromagnetic wave propagation,
  • radiowave propagation,
  • optical waveguides,
  • couplers,
  • and arrays (integrated optics),
  • electromagnetic (nonlaser) radiation interactions with plasma,
  • plasma interactions with antennas,
  • plasma-filled waveguides
Citation Information
Brian Edwards, Andrea Alù, Michael E Young, Mário Silveirinha, et al.. "Experimental Verification of Epsilon-Near-Zero Metamaterial Coupling and Energy Squeezing Using a Microwave Waveguide" (2008)
Available at: http://works.bepress.com/andrea_alu/40/