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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 14 — Jul. 6, 2009
  • pp: 12183–12188

Multi-passband Tunneling Effect in Multilayered Epsilon-Near-Zero Metamaterials

Liyuan Liu, Chenggang Hu, Zeyu Zhao, and Xiangang Luo  »View Author Affiliations


Optics Express, Vol. 17, Issue 14, pp. 12183-12188 (2009)
http://dx.doi.org/10.1364/OE.17.012183


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Abstract

Recently, several experimental results verified the tunneling effect theory of that the electromagnetic energy can be squeezed through an ultra-narrow channel filled with epsilon-near-zero (ENZ) medium. However, the energy squeezing can be only achieved in a narrow region. Here, we present a full-wave simulation of the tunneling effect in multilayered channels full of thin ENZ metamaterials with different plasma frequencies. Thin metallic wires arrays with different radiuses are employed to form these effective ENZ media, whose plasma frequencies are different. The appearance of several passbands in the transmission curve verifies that multi-passband energy tunneling effect can be implemented by multilayer ENZ channels. There are two possible reasons for these peaks, one is the ENZ tunneling effect, and the other is the Fabry-Pérot resonance. For each transmission peak corresponding two-spatial maps of electric field are given, in order to distinguish the causes.

© 2009 OSA

OCIS Codes
(050.2230) Diffraction and gratings : Fabry-Perot
(160.0160) Materials : Materials
(230.7380) Optical devices : Waveguides, channeled
(160.3918) Materials : Metamaterials

ToC Category:
Metamaterials

History
Original Manuscript: May 14, 2009
Revised Manuscript: June 29, 2009
Manuscript Accepted: June 29, 2009
Published: July 2, 2009

Citation
Liyuan Liu, Chenggang Hu, Zeyu Zhao, and Xiangang Luo, "Multi-passband tunneling effect in multilayered Epsilon-Near-Zero Metamaterials," Opt. Express 17, 12183-12188 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-14-12183


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