Results 1 to 10 of about 44,433 (290)

Recent Developments and Applications of Terahertz Spectroscopy in Food Analysis [PDF]

Biosensors
The terahertz waves are electromagnetic waves with frequencies ranging from 0.1 to 10 THz, exhibiting characteristics of both microwave and infrared, including fingerprint characteristics, coherence, and safety.
Pengpeng Yu, Chaoping Shen, Wenhui Zhu, Wenya Zhang, Junhui Cheng, Jinxiu Song   +5 more
doaj   +2 more sources

Terahertz spectroscopy study of oridonin and ponicidin in the anticancer Chinese herbal medicine Rabdosia rubescens [PDF]

Frontiers in Plant Science
Rabdosia rubescens, a Chinese herbal medicine with anticancer properties, contains two active ingredients: oridonin and ponicidin. Both compounds exhibit antitumor effects by inducing tumor cell apoptosis and autophagy and inhibiting tumor cell ...
Yang Gao, Yang Gao, Yang Gao, Yang Gao, Zhuang Peng, Zhuang Peng, Zhuang Peng, Zhuang Peng, Huiyu Yang, Huiyu Yang, Huiyu Yang, Huiyu Yang, Xinrui Zhang, Xinrui Zhang, Xinrui Zhang, Xinrui Zhang, Yuhan Zhao, Yuhan Zhao, Yuhan Zhao, Yuhan Zhao, Zeyu Hou, Zeyu Hou, Zeyu Hou, Zeyu Hou, Bo Su, Bo Su, Bo Su, Bo Su, Kai Li, Kai Li, Kai Li, Cunlin Zhang, Cunlin Zhang, Cunlin Zhang   +33 more
doaj   +2 more sources

Detection of tomato water stress based on terahertz spectroscopy [PDF]

Frontiers in Plant Science, 2023
China’s tomato cultivation area is nearly 15 thousand km2, and its annual tomato output is about 55 million tons, accounting for 7% of its total vegetable production.
Yixue Zhang, Xinzhong Wang, Yafei Wang, Lian Hu, Pei Wang   +4 more
doaj   +2 more sources

Metamaterial-Enhanced Nonlinear Terahertz Spectroscopy [PDF]

EPJ Web of Conferences, 2013
We demonstrate large nonlinear terahertz responses in the gaps of metamaterial split ring resonators in several materials and use nonlinear THz transmission and THz-pump/THz-probe spectroscopy to study the nonlinear responses and dynamics.
Zhang X., Perkins B. G., Brandt N. C., Sternbach A., Strikwerda A. C., Zhang J., Fan K., Liu M., Hwang H. Y., Averitt R. D., Nelson K. A.   +10 more
doaj   +2 more sources

New insights into APCVD grown monolayer MoS₂ using time-domain terahertz spectroscopy. [PDF]

Sci Rep, 2023
Sharma S, Chauhan P, Rane S, Raj U, Srivastava S, Ansari ZA, Roy Chowdhury D, Gupta BK.   +7 more
europepmc   +3 more sources

A Novel Method for the Enhancement of Composite Materials’ Terahertz Image Using Unsharp Masking and Guided Filtering Technology

Frontiers in Physics, 2021
When terahertz imaging technology is used for the nondestructive testing of composite materials, the signal is often affected by the experimental environment and internal noise of the system, as well as the absorption and scattering effect of the tested ...
Zhilong Li, Jian Zuo, Yuanmeng Zhao, Zhongde Han, Zhihao Xu, Yunzhang Zhao, Chao Yang, Weidong Hu, Cunlin Zhang   +8 more
doaj   +1 more source

Metasurface-based terahertz wideband linear polarization converter

Results in Optics, 2023
We designed a linear polarization converter based on metasurface and simulated its functionality. It has a broad bandwidth and operates in the terahertz frequency range (0.4–1.2 THz).
Yuhan Zhao, Zeyu Hou, Bingxin Yan, Bo Su, Cunlin Zhang   +4 more
doaj   +1 more source

Electronic transparency of internal interfaces in metallic nanostructures comprising light, heavy and ferromagnetic metals measured by terahertz spectroscopy. [PDF]

Nanophotonics
Beermann NS, Fabretti S, Hafez HA, Syskaki MA, Kononenko I, Jakob G, Kläui M, Turchinovich D.   +7 more
europepmc   +3 more sources

Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering Method

Sensors, 2021
Terahertz focal plane array imaging methods, direct camera imaging and conventional light field imaging methods are incapable of resolving and separating layers of multilayer objects.
Nanfang Lyu, Jian Zuo, Yuanmeng Zhao, Cunlin Zhang   +3 more
doaj   +1 more source

Tunable resistive switching in shales

Results in Physics, 2023
Electrically induced resistive switching is a subject of increasing scientific interest because it is a candidate for universal non-volatile memory. We demonstrate resistive switching in a natural reservoir shale.
Xinyang Miao, Wanting Lu, Yawen Yu, Xuecong Liu, Honglei Zhan, Kun Zhao   +5 more
doaj   +1 more source