Electrically resonant terahertz metamaterials: Theoretical and experimental investigations

TitleElectrically resonant terahertz metamaterials: Theoretical and experimental investigations
Publication TypeJournal Article
Year of Publication2007
AuthorsWJ Padilla, MT Aronsson, C Highstrete, M Lee, AJ Taylor, and RD Averitt
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue4
Date Published01/2007
Abstract

We present a class of artificial materials that exhibit a tailored response to the electrical component of electromagnetic radiation. These electric metamaterials are investigated theoretically, computationally, and experimentally using terahertz time-domain spectroscopy. These structures display a resonant response including regions of negative permittivity 1 (ω) <0 ranging from ∼500 GHz to 1 THz. Conventional electric media such as distributed wires are difficult to incorporate into metamaterials. In contrast, these localized structures will simplify the construction of future metamaterials, including those with negative index of refraction. As these structures generalize to three dimensions in a straightforward manner, they will significantly enhance the design and fabrication of functional terahertz devices. © 2007 The American Physical Society.

DOI10.1103/PhysRevB.75.041102
Short TitlePhysical Review B - Condensed Matter and Materials Physics