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Proceedings Paper

Metamaterial resonator arrays for organic and inorganic compound sensing
Author(s): Luigi La Spada; Filiberto Bilotti; Lucio Vegni
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Paper Abstract

In this paper, an electromagnetic metamaterial resonator operating in the terahertz frequency range is presented. By arranging the resonator in a planar array, it is possible to use the structure as a sensing device for organic and inorganic compounds. The sensor is designed to detect the presence of a biological compound by permittivity or absorption measurements. The presence of the biological matter modifies the effective permittivity and, thus, the resonant frequency significantly varies. In addition, biological compounds typically exhibit absorption characteristics that depend on the corresponding molecular structure. Therefore, it is necessary to illuminate the material selectively. We show that by employing the "selective" properties of the metamaterial resonator proposed, it is possible to enhance the sensing performances. The proposed design is suitable to sense the presence of healthy and malignant tissues, with possible applications in food and medical diagnostics. The operation of the sensing device has been demonstrated through proper full-wave simulations.

Paper Details

Date Published: 11 October 2011
PDF: 10 pages
Proc. SPIE 8306, Photonics, Devices, and Systems V, 83060I (11 October 2011); doi: 10.1117/12.912267
Show Author Affiliations
Luigi La Spada, Roma Tre Univ. (Italy)
Filiberto Bilotti, Roma Tre Univ. (Italy)
Lucio Vegni, Roma Tre Univ. (Italy)

Published in SPIE Proceedings Vol. 8306:
Photonics, Devices, and Systems V
Pavel Tománek; Dagmar Senderáková; Petr Páta, Editor(s)

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