Results 91 to 100 of about 11,658 (306)

Dynamic modeling of Terahertz Quantum cascade lasers [PDF]

, 2011
In this paper, the influence of the simplifications made in the four-equation-based set of rate equations describing the dynamic behavior of a Quantum Cascade Laser (QCL) is studied.
Petitjean, Yoann, Destic, Fabien, Mollier, Jean-Claude, Sirtori, Carlo   +3 more
core   +1 more source

Enhanced 3D CW terahertz imaging with ultra sparse arrays using a phase coherence method

, 2022
S.527-528Sparse multistatic array designs that are based on the effective aperture concept enable real-time and cost-effective 3D CW terahertz imaging solutions.
Baccouche, B., Friederich, F., Sauer-Greff, W., Urbansky, R.   +3 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Intracavity terahertz optical parametric oscillators

, 2011
This thesis describes the design and implementation of several novel, nanosecond pulsed, intracavity optical parametric oscillators for the generation of terahertz radiation.
Walsh, David A.
core  

A compact, continuous-wave terahertz source based on a quantum-cascade laser and a miniature cryocooler

, 2010
We report on the development of a compact, easy-to-use terahertz radiation source, which combines a quantum cascade laser (QCL) operating at 3.1 THz with a compact, low input-power Stirling cooler.
Semenov, Alexey, Richter, Heiko, Schrottke, Lutz, Grahn, H. T., Giehler, M., Wienold, Martin, Huebers, H.-W., Pavlov, Sergey, Greiner-Bär, Michael, Hey, R., Semenov, Alexei D.   +10 more
core   +1 more source

Spacer‐Less Substrate‐Integrated Metasurface for Near‐Unity Terahertz Absorption

Advanced Optical Materials, EarlyView.
ABSTRACT Although conventional metal‐insulator‐metal (MIM) terahertz (THz) absorbers can provide near‐unity absorption, their multilayer stacks inevitably introduce additional thickness, mass, and residual stress, which limit their compatibility with THz thermal sensing platforms.
Zihao Zhao, Kazuho Harada, Qian Liu, Isao Morohashi, Xu Fang, Kazuhiko Hirakawa, Ya Zhang   +6 more
wiley   +1 more source

Terahertz multispectral imaging by thermo-conversion using MIM antenna

, 2018
International audienceConversion of terahertz radiation into thermal radiation is a low-cost approach for terahertz detection by standard infrared camera.
Bouchon, Patrick, Haidar, Riad, Salmon, Arthur, Fauché, P., Caumes, J.P., Rommeluère, Sylvain   +5 more
core   +1 more source

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

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   +1 more source

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

Advanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu, Fulu Zheng, San‐Dong Guo, Thomas Frauenheim, Zhaobo Zhou, Junjie He   +5 more
wiley   +1 more source

Rapid Determination of Rivaroxaban by Using Terahertz Metamaterial Biosensor

Photonics
Rivaroxaban, a direct oral anticoagulant, is widely used in the management and prevention of thrombotic conditions. Dose adjustments are necessary to optimize efficacy based on individual physiological differences. However, current analytical methods are
Xinghao Huang, Jing Wu, Xu Wu, Yan Peng
doaj   +1 more source