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Photonics 2019, 6(1), 22; https://doi.org/10.3390/photonics6010022

Terahertz Field Confinement in Nonlinear Metamaterials and Near-Field Imaging

1
Department of Physics, Washington College, Chestertown, MD 21620, USA
2
Department of Engineering, Aarhus University, 8200 Aarhus N., Denmark
*
Authors to whom correspondence should be addressed.
Received: 15 December 2018 / Revised: 11 February 2019 / Accepted: 18 February 2019 / Published: 28 February 2019
(This article belongs to the Special Issue Terahertz Photonics)
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PDF [5391 KB, uploaded 28 February 2019]
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Abstract

This article reviews recent advances in terahertz science and technology that rely on confining the energy of incident terahertz radiation to small, very sub-wavelength sized regions. We focus on two broad areas of application for such field confinement: metamaterial-based nonlinear terahertz devices and terahertz near-field microscopy and spectroscopy techniques. In particular, we focus on field confinement in: terahertz nonlinear absorbers, metamaterial enhanced nonlinear terahertz spectroscopy, and in sub-wavelength terahertz imaging systems. View Full-Text
Keywords: terahertz; field confinement; nonlinear; metamaterials; near-field imaging terahertz; field confinement; nonlinear; metamaterials; near-field imaging
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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 (CC BY 4.0).
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Keiser, G.R.; Klarskov, P. Terahertz Field Confinement in Nonlinear Metamaterials and Near-Field Imaging. Photonics 2019, 6, 22.

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