Articles «Previous Next»

Experimental Verification of Epsilon-Near-Zero Metamaterial Coupling and Energy Squeezing Using a Microwave Waveguide

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

Article 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.

Suggested Citation

Brian Edwards, Andrea Alù, Michael E. Young, Mário Silveirinha, and Nader Engheta. "Experimental Verification of Epsilon-Near-Zero Metamaterial Coupling and Energy Squeezing Using a Microwave Waveguide" Departmental Papers (ESE) (2008).
Available at: http://works.bepress.com/nader_engheta/85