Ultra sub-wavelength resolution terahertz near-field imaging: modelling via the FDTD method in a multi-pixel sampling approach

Laser Physics ◽  
2020 ◽  
Vol 30 (12) ◽  
pp. 125001
Author(s):  
Bahareh Yahyaei ◽  
Omid Panahi ◽  
Farzad Moradiannejad ◽  
Aboozar Masoomi Ghiasabadi
Keyword(s):  
Near Field ◽  
Fdtd Method ◽  
Near Field Imaging ◽  
Wavelength Resolution ◽  
Field Imaging ◽  
Sampling Approach ◽  
Sub Wavelength

scholarly journals Terahertz Field Confinement in Nonlinear Metamaterials and Near-Field Imaging

Photonics ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 22 ◽  
Author(s):  
George Keiser ◽  
Pernille Klarskov
Keyword(s):  
Terahertz Radiation ◽  
Terahertz Spectroscopy ◽  
Near Field ◽  
Terahertz Imaging ◽  
Imaging Systems ◽  
Near Field Imaging ◽  
Nonlinear Metamaterials ◽  
Terahertz Devices ◽  
Field Imaging ◽  
Sub Wavelength

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.

scholarly journals Sub-wavelength near field imaging techniques at terahertz frequencies

2018 ◽  
Author(s):  
Maria Caterina Giordano ◽  
Oleg Mitrofanov ◽  
Leonardo Viti ◽  
Daniele Ercolani ◽  
Lucia Sorba ◽  
...  
Keyword(s):  
Imaging Techniques ◽  
Near Field ◽  
Near Field Imaging ◽  
Terahertz Frequencies ◽  
Field Imaging ◽  
Sub Wavelength

scholarly journals Efficient Near-Field Imaging Using Cylindrical MIMO Arrays

2021 ◽  
pp. 1-1
Author(s):  
Shiyong Li ◽  
Shuoguang Wang ◽  
Moeness G. Amin ◽  
Guoqiang Zhao
Keyword(s):  
Near Field ◽  
Near Field Imaging ◽  
Mimo Arrays ◽  
Field Imaging
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