Results 51 to 60 of about 1,799,704 (293)

Millimetre wave imaging for concealed target detection [PDF]

, 2011
PhDConcealed weapon detection (CWD) has been a hot topic as the concern about pub- lic safety increases. A variety of approaches for the detection of concealed objects on the human body based on earth magnetic ¯eld distortion, inductive magnetic ¯eld,
Zhang, Lianhong
core   +4 more sources

Role of Structural Disorder on Phonon Transport and Thermal Conductivity in Li6PS5Br

Advanced Functional Materials, EarlyView.
Solid electrolytes are fast ion and slow heat conductors. Although both transport properties are governed by lattice dynamics and atomic structure, their interplay remains poorly understood. Here, we study this interrelation in anion‐ordered and disordered Li6PS5Br.
Lukas Ketter, Ryoma Sasaki, Kyra Strotmann, Wolfgang G. Zeier, Yoshitaka Tateyama   +4 more
wiley   +1 more source

Geometric phase for multidimensional manipulation of photonics spin Hall effect and helicity-dependent imaging

Nanophotonics, 2020
The spin Hall effect of light, associated with spin-orbit interactions, describes a transport phenomenon with optical spin-dependent splitting, leading to a plethora of applications such as sensing, imaging, and spin-controlled nanophotonics.
Zang XiaoFei, Yao BingShuang, Li Zhen, Zhu Yang, Xie JingYa, Chen Lin, Balakin Alexey. V., Shkurinov Alexander. P., Zhu YiMing, Zhuang SongLin   +9 more
doaj   +1 more source

Moxa Wool in Different Purities and Different Growing Years Measured by Terahertz Spectroscopy

Plant Phenomics, 2022
Moxa wool is a traditional Chinese herbal medicine, which can warm channels to dispel coldness. At present, there is no unified index to evaluate the purity and growing years of moxa wool in the market. Terpineol is one of the effective substances in the
Yongni Shao, Di Zhu, Yutian Wang, Zhi Zhu, Wenchao Tang, Zhengan Tian, Yan Peng, Yiming Zhu   +7 more
doaj   +1 more source

High resolution terahertz raster imaging

, 2022
Art. 5324610We present recent progress in on-the-fly broadband raster transmission and reflection terahertz imaging with a focus on the data evaluation. Possibilities to enhance the resolution by frequency domain filtering as well as terahertz tomography
Torosyan, G., Beigang, R., Wiegand, C., Molter, D., Theuer, M.   +4 more
core   +1 more source

Resistance to Overdoping Allows Over 2000 S cm−1 Conductivity in P(g3BTTT) With Anion‐Exchange Doping

Advanced Materials, EarlyView.
Anion‐exchange doping of conjugated polymers is an effective way to achieve high conductivities. Here, we report over 2000 S cm−1 electrical conductivity for doped P(g3BTTT). In addition, we show that P(g3BTTT) sustains exceptionally high doping levels without any drop in the charge mobility.
Basil Hunger, Maximilian M. Horn, Eva Röck, Diego Rosas Villalva, Lize Bynens, Jochen Vanderspikken, Christina Kousseff, Silène Gobeil, Olivier Bardagot, Nesibe Akmanşen‐Kalayci, Sarah H. Tolbert, Iain McCulloch, Wouter Maes, Demetra Tsokkou, Natalie Banerji   +14 more
wiley   +1 more source

Molecular imaging with terahertz waves

Optics Express, 2011
We demonstrate a highly sensitive THz molecular imaging (TMI) technique involving differential modulation of surface plasmons induced on nanoparticles and obtain target specific in vivo images of cancers. This technique can detect quantities of gold nanoparticles as small as 15 µM in vivo. A comparison of TMI images with near infrared absorption images
Seung Jae, Oh, Jihye, Choi, Inhee, Maeng, Jae Yeon, Park, Kwangyeol, Lee, Yong-Min, Huh, Jin-Suck, Suh, Seungjoo, Haam, Joo-Hiuk, Son   +8 more
openaire   +3 more sources

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, Shabab Bazrafkan, Jan De Beenhouwer, Jan Sijbers   +3 more
openaire   +2 more sources

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

Advanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare, Craig S. Knox, Ahmet Yagmur, Sara Ghayeb Zamharir, Lianhe Li, Satoshi Sasaki, A. Giles Davies, Edmund H. Linfield, Joshua R. Freeman, Miriam S. Vitiello   +9 more
wiley   +1 more source

Detection of melatonin and 5-HTP in dietary supplements based on multiple spectra

Frontiers in Nutrition
IntroductionMelatonin and 5-hydroxytryptophan (5-HTP), known for benefits in regulating sleep and combating depression, respectively, are incorporated into dietary supplements.
Huiyu Yang, Huiyu Yang, Huiyu Yang, Xinrui Zhang, Xinrui Zhang, Xinrui Zhang, Yang Gao, Yang Gao, Yang Gao, Zhuang Peng, Zhuang Peng, Zhuang Peng, Bo Su, Bo Su, Bo Su, Kai Li, Cunlin Zhang, Cunlin Zhang, Cunlin Zhang   +18 more
doaj   +1 more source