NDLI: Mastering the Propagation Through Stacked Perforated Plates: Subwavelength Holes vs. Propagating Holes

Content Provider	IEEE Xplore Digital Library
Author	Navarro-Cia, M. Beruete, M. Falcone, F. Illescas, J.M. Campillo, I. Sorolla Ayza, M.
Copyright Year	1963
Abstract	More insight on the physics underlying the transmission through subwavelength hole arrays prism by comparing it with propagating hole arrays prism is provided. We show the critical role that the size of the holes plays in this electromagnetic propagation, changing the effective index of refraction from negative (backward wave) to positive values (forward wave) as the hole diameter increases. This causes negative refraction for the zeroth order emerging beam in the cut-off holes prism whereas positive refraction in the non-cut-off holes prism. Furthermore, we revisited from the perspective of superposition principle the explanation of these stacks based on the so-called building sub-units: horizontal rods and vertical wires. Our simple analysis reveals the drawbacks of this earlier interpretation, and reinforces the powerful model founded on a inverse transmission line. Experimental results (co- and cross-polar measurements) performed at the V-band of the millimeter-waves in the Fresnel zone are well supported by numerical analyses. As expected, higher order diffracted outgoing beams are recorded for the classical prism but not for the cut-off holes prism.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	2980
Ending Page	2988
Page Count	9
File Size	1476387
File Format	PDF
ISSN	0018926X
Volume Number	59
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Metamaterials Indexes Electric fields Dispersion Media Wires Periodic structures metamaterials Extraordinary transmission frequency selective surfaces perforated plates negative index of refraction
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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