Results 31 to 40 of about 3,740 (211)

Characterization of Wheat Varieties Using Terahertz Time-Domain Spectroscopy

Sensors, 2015
Terahertz (THz) spectroscopy and multivariate data analysis were explored to discriminate eight wheat varieties. The absorption spectra were measured using THz time-domain spectroscopy from 0.2 to 2.0 THz.
Hongyi Ge, Yuying Jiang, Feiyu Lian, Yuan Zhang, Shanhong Xia   +4 more
doaj   +1 more source

Experimental Study on Glass and Polymers: Determining the Optimal Material for Potential Use in Terahertz Technology

IEEE Access, 2020
The optical properties of polymers and glasses useful for terahertz applications are experimentally characterized using terahertz time-domain spectroscopy (THz-TDS). A standard system setup utilizing transmission spectroscopy is used to measure different
Md Saiful Islam, Cristiano M. B. Cordeiro, Md J. Nine, Jakeya Sultana, Alice L. S. Cruz, Alex Dinovitser, Brian Wai-Him Ng, Heike Ebendorff-Heidepriem, Dusan Losic, Derek Abbott   +9 more
doaj   +1 more source

Terahertz time-domain spectroscopy of chondroitin sulfate

Biomedical Optics Express, 2018
Chondroitin sulfate (CS), derived from cartilage tissues, is an important type of biomacromolecule. In this paper, the terahertz time-domain spectroscopy (THz-TDS) was investigated as a potential method for content detection of CS. With the increase of the CS content, the THz absorption coefficients of the CS/polyethylene mixed samples linearly ...
Changcheng, Shi, Yuting, Ma, Jin, Zhang, Dongshan, Wei, Huabin, Wang, Xiaoyu, Peng, Mingjie, Tang, Shihan, Yan, Guokun, Zuo, Chunlei, Du, Hongliang, Cui   +10 more
openaire   +2 more sources

Gastrointestinal cancer diagnostics by terahertz time domain spectroscopy [PDF]

2017 IEEE International Symposium on Medical Measurements and Applications (MeMeA), 2017
Samples of fresh excised tissues obtained from patients who had undergone gastric cancer have been investigated. Samples consisted of cancer zone, normal zone and pathologically changed zone. Their optical properties and spectral features were investigated by terahertz time-domain spectroscopy (THz-TDS) in reflection mode.
Anna A. Goryachuk, Anna A. Simonova, Mikhail K. Khodzitsky, Mariia Borovkova, Abdo Khamid   +4 more
openaire   +2 more sources

Quantitative Determination of Sucrose Adulterated in Red Ginseng by Terahertz Time-Domain Spectroscopy (THz-TDS) with Monte Carlo Uninformative Variable Elimination (MCUVE) and Support Vector Regression (SVR)

Journal of Spectroscopy, 2022
This paper introduces a method to detect the content of sucrose, an adulterant of red ginseng, based on terahertz spectroscopy. Experiments were carried out on red ginseng with 6 levels of adulterated concentrations using terahertz time-domain ...
Shubao Pan, Huo Zhang, Zhi Li, Tao Chen, Xianhua Yin   +4 more
doaj   +1 more source

Microscopic Origin of Temperature‐Dependent Anisotropic Heat Transport in Ultrawide‐Bandgap Rutile GeO2

Advanced Functional Materials, EarlyView.
Rutile GeO2${\rm GeO}_{2}$ exhibits orientation‐dependent heat transport with temperature‐dependent anisotropy, showing higher cross‐plane thermal conductivity along [001] than along the equivalent in‐plane [100] and [010] directions. Temperature‐dependent TDTR measurements and first‐principles phonon calculations identify the microscopic phonon ...
Pouria Emtenani, Marta Loletti, Felix Nippert, Eduardo Bedê Barros, Zbigniew Galazka, Hans Tornatzky, Christian Thomsen, Juan Sebastián Reparaz, Riccardo Rurali, Markus R. Wagner   +9 more
wiley   +1 more source

Terahertz Time-Domain Spectroscopic Characteristics of Typical Metallic Minerals

Molecules
Accurate identification and understanding of various metallic minerals are crucial for deciphering geological formations, structures, and ages. Giving their pivotal role as essential natural resources, a microscopic exploration of metallic minerals ...
Jingjing Zhang, Haochong Huang, Pengbo Zhao, Luyong Xu, Zhenbo Tan, Jinyuan Zhao, Enhui Yuan, Zhiyuan Zheng, Shanshan Li, Xinyu Li, Kunfeng Qiu   +10 more
doaj   +1 more source

Terahertz absorption characteristics of ammonium salt solution based on self-sampling microfluidic chip

Scientific Reports, 2022
With the continuous development of terahertz (THz) detection technology, the use of terahertz spectroscopy to study chemical samples has become one of the indispensable tools in the field of biochemistry.
Qinghao Meng, Siyu Qian, Jing Ding, Qingjun Li, Xinyuan Zhao, Bo Su, Cunlin Zhang   +6 more
doaj   +1 more source

Broadband Terahertz Detection by Laser Plasma with Balanced Optical Bias

Sensors, 2022
Using a controlled optical bias and balanced geometry, we propose a new scheme for broadband terahertz detection by laser-gas interaction without high-voltage manipulation. Compared to the conventional optical bias scheme, the common noise is reduced and
Xu Sun, Zhi-Hui Lyu, Hai-Zhong Wu, Cong-Sen Meng, Dong-Wen Zhang, Zhi-Zhong Lu, Xiao-Wei Wang, Zeng-Xiu Zhao, Jian-Min Yuan   +8 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source