Results 31 to 40 of about 11,658 (306)
Terahertz spectral properties of glucose and two disaccharides in solid and liquid states
iScience, 2022 Summary: The vibrational and rotational frequencies of most biological macromolecules fall within the terahertz (THz) band; therefore, the THz wave has a strong ability to distinguish substances.
Haiyun Huang +5 more
doaj +1 more source
THz QCL - Based active imaging applied to composite materials diagnostic [PDF]
, 2010 This paper presents a CW raster-scanning THz imaging setup, used to perform Non-Destructive Testing of Kevlar and carbon fibre samples. The setup uses a 2.5 THz Quantum Cascade Laser as a source.
Yoann Petitjean +9 more
core +1 more source
Measured and simulated performance of a ceramic micromechanical beam steering device at 94 GHz [PDF]
, 2008 We report the first experimental demonstration of a transmission-mode micromechanical beam steering device for use in standoff terahertz imaging and spectroscopy.
Drysdale, T.D. +5 more
core +1 more source
A Review on Terahertz Technologies Accelerated by Silicon Photonics
Nanomaterials, 2021 In the last couple of decades, terahertz (THz) technologies, which lie in the frequency gap between the infrared and microwaves, have been greatly enhanced and investigated due to possible opportunities in a plethora of THz applications, such as imaging,
Jingya Xie +6 more
doaj +1 more source
Terahertz imaging for styrofoam inspection
, 2022 Paper 67720PImaging of styrofoam with the help of ultrashort Terahertz pulses is investigated. With a combination of pulse amplitude and time delay imaging it is possible to speed up the measurement about two orders of ...
Riehmann, S. +3 more
core +1 more source
Dual Low-Rank Constrained Self-Representation Learning for Unsupervised SAR Image Change Detection
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingChange detection (CD) in bitemporal synthetic aperture radar images has been an important research direction in remote sensing intelligent interpretation.
Weisong Li, Yinwei Li, Yiming Zhu
doaj +1 more source
Nanomaterials, 2020 We applied the harmonic oscillator model combined with the transfer matrix method to study the polarization conversion for transmitted waves in metallic grating/plasmon-excitation layer/metallic grating structure in the terahertz (THz) region.
Anqi Yu +8 more
doaj +1 more source
Advanced Photonics Research, 2023 Photonic crystal (PhC) can be accurately designed to generate nontrivial and trivial modes, that is, edge states (ES)/corner states (CS) and cavity modes, respectively. The coupled cavity–waveguide system designed by PhC provides a chip‐scale platform to
Xudong Zhan +5 more
doaj +1 more source
CNN-based Deblurring of Terahertz Images
Proceedings of the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, 2020 Abstract: The past decade has seen a rapid development of terahertz (THz) technology and imaging. One way of doing THz imaging is measuring the transmittance of a THz beam through the object. Although THz imaging is a useful tool in many applications, there are several effects of a THz beam not fully addressed in the literature such as reflection and ...
Marina Ljubenovic +3 more
openaire +2 more sources
Fast Terahertz Computed-Tomography Imaging With a Quantum-Cascade Laser and a Scanning Mirror
, 2013 A terahertz transmission imaging system based on a quantum-cascade laser (QCL), a fast scanning mirror, and a sensitive Ge:Ga detector is demonstrated. In order to reduce artifacts, special care was taken on the optics and the conversion of the measured
H.-W. Hubers +11 more
core +1 more source