Terahertz Field Confinement in Nonlinear Metamaterials and Near-Field Imaging
PHOTONICS(2019)
摘要
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.
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关键词
terahertz,field confinement,nonlinear,metamaterials,near-field imaging
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