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Materials 2011, 4(1), 1-36; doi:10.3390/ma4010001
Review

Negative Refractive Index Metasurfaces for Enhanced Biosensing

1,* , 2
, 3
 and 1
Received: 2 November 2010; in revised form: 9 December 2010 / Accepted: 20 December 2010 / Published: 23 December 2010
(This article belongs to the Special Issue Next Wave of Metamaterials)
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Abstract: In this paper we review some metasurfaces with negative values of effective refractive index, as scaffolds for a new generation of surface plasmon polariton-based biological or chemical sensors. The electromagnetic properties of a metasurface may be tuned by its full immersion into analyte, or by the adsorption of a thin layer on it, both of which change its properties as a plasmonic guide. We consider various simple forms of plasmonic crystals suitable for this purpose. We start with the basic case of a freestanding, electromagnetically symmetrical plasmonic slab and analyze different ultrathin, multilayer structures, to finally consider some two-dimensional “wallpaper” geometries like split ring resonator arrays and fishnet structures. A part of the text is dedicated to the possibility of multifunctionalization where a metasurface structure is simultaneously utilized both for sensing and for selectivity enhancement. Finally we give an overview of surface-bound intrinsic electromagnetic noise phenomena that limits the ultimate performance of a metasurfaces sensor.
Keywords: plasmonics; optical metamaterials; artificial nanomembranes; long range surface plasmons polaritons; chemical sensors; biosensors plasmonics; optical metamaterials; artificial nanomembranes; long range surface plasmons polaritons; chemical sensors; biosensors
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Jakšić, Z.; Vuković, S.; Matovic, J.; Tanasković, D. Negative Refractive Index Metasurfaces for Enhanced Biosensing. Materials 2011, 4, 1-36.

AMA Style

Jakšić Z, Vuković S, Matovic J, Tanasković D. Negative Refractive Index Metasurfaces for Enhanced Biosensing. Materials. 2011; 4(1):1-36.

Chicago/Turabian Style

Jakšić, Zoran; Vuković, Slobodan; Matovic, Jovan; Tanasković, Dragan. 2011. "Negative Refractive Index Metasurfaces for Enhanced Biosensing." Materials 4, no. 1: 1-36.


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