Achieving transparency with plasmonic and metamaterial coatings

Andrea Alù and Nader Engheta

Phys. Rev. E 72, 016623 – Published 26 July 2005; Erratum Phys. Rev. E 73, 019906 (2006)

Abstract

The possibility of using plasmonic and metamaterial covers to drastically reduce the total scattering cross section of spherical and cylindrical objects is discussed. While it is intuitively expected that increasing the physical size of an object may lead to an increase in its overall scattering cross section, here we see how a proper design of these lossless metamaterial covers near their plasma resonance may induce a dramatic drop in the scattering cross section, making these objects nearly “invisible” or “transparent” to an outside observer—a phenomenon with obvious applications for low-observability and noninvasive probe design. Physical insights into this phenomenon and some numerical results are provided.

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Received 12 February 2005

DOI:https://doi.org/10.1103/PhysRevE.72.016623

Erratum

Erratum: Achieving transparency with plasmonic and metamaterial coatings [Phys. Rev. E, 72, 016623 (2005)]

Andrea Alù and Nader Engheta

Phys. Rev. E 73, 019906 (2006)

Authors & Affiliations

Andrea Alù^1,2 and Nader Engheta^1,*

¹Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
²Department of Applied Electronics, University of Roma Tre, Rome, Italy

^*Author to whom correspondence should be addressed. Email address: engheta@ee.upenn.edu

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Vol. 72, Iss. 1 — July 2005

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Physical Review E

covering statistical, nonlinear, biological, and soft matter physics