Results 131 to 140 of about 48,397 (306)

Principle of Terahertz Time-Domain Spectroscopy

, 2023
In this work, the detection of terahertz (THz) pulse via different schemes of THz time-domain spectroscopy (THz-TDS), including electro-optic sampling (EOS) and photoconductive sampling (PCS), has been reviewed by insisting on its principles and characteristics. Furthermore, four developments of THz-TDS, i.e. THz air-breakdown/biased coherent detection
openaire   +2 more sources

Polarization-variable emitter for terahertz time-domain spectroscopy

Optics Express, 2016
We report on the progress in the development of linear polarization-variable multielectrode emitters for terahertz time-domain spectroscopy. The results on its microfabrication, the finite element method modeling of appropriate bias distribution between electrodes, the finite-difference time-domain simulated spectral output, and actual experimental ...
Bulgarevich, Dmitry S., Watanabe, Makoto, Shiwa, Mitsuharu, Niehues, Gudrun, Kitahara, Hideaki, Tani, Masahiko   +5 more
openaire   +4 more sources

Gallium Nitride Semiconductor Resonant Tunneling Transistor

Advanced Science, EarlyView.
Three‐terminal GaN semiconductor resonant tunneling transistors (RTTs), which comprise an double‐barrier AlN/GaN/AlN resonant tunneling diode integrated with a GaN high‐electron‐mobility transistor (HEMT) through epitaxial growth in series and parallel configuraions, respectively.
Fang Liu, JunShuai Xue, GuanLin Wu, JinYuan Yuan, JiaJia Yao, RenJie Liu, Zhuang Guo, ZeHui Li, HaoRan Hu, WenBo Sun, Cheng Zhao, ChenKai Zhang, XinYan Liu, Kai Zhang, JinCheng Zhang, Yue Hao   +15 more
wiley   +1 more source

Insights into the water status in hydrous minerals using terahertz time-domain spectroscopy

Scientific Reports, 2019
The determinations of water status incorporated in hydrous minerals are of considerable significances in geoscience fields. Coincidentally, the aqueous sensitivity of terahertz radiation has motivated numerous explorations in several cross-domain ...
Yuanyuan Ma, Haochong Huang, S. Hao, K. Qiu, Hua Gao, Lu Gao, W. Tang, Zi-li Zhang, Zhi-yuan Zheng   +8 more
semanticscholar   +1 more source

High-pressure cell for terahertz time-domain spectroscopy

Optics Express, 2017
We introduce a sample cell that can be used for pressure-dependent terahertz time-domain spectroscopy. Compared with traditional far-IR spectroscopy with a diamond anvil cell, the larger aperture permits measurements down to much lower frequencies as low as 3.3 cm-1 (0.1 THz), giving access to new spectroscopic results.
Wei, Zhang, Daniel, Nickel, Daniel, Mittleman   +2 more
openaire   +2 more sources

Ultrafast Nonlinear Dynamics of Indium Tin Oxide Nanocrystals Probed via Fieldoscopy

Advanced Science, EarlyView.
The ultrafast nonlinear dynamics of indium tin oxide nanocrystals excited with 1 MHz, 10 fs pulses, at their localized surface plasmon frequency, and near their epsilon‐near‐zero wavelength is probed via fieldoscopy. The study demonstrates fluence‐dependent switching behavior, advancing the understanding of high‐speed optical modulation in plasmonic ...
Andreas Herbst, Anchit Srivastava, Kilian Scheffter, Soyeon Jun, Steffen Gommel, Luca Rebecchi, Sidharth Kuriyil, Andrea Rubino, Nicolò Petrini, Ilka Kriegel, Hanieh Fattahi   +10 more
wiley   +1 more source

Investigation of Fresh Gastric Normal and Cancer Tissues Using Terahertz Time-Domain Spectroscopy

Materials, 2019
In recent times, terahertz (THz) technologies have been actively applied in many biomedical research work, including gastric cancer diagnosis. In order to provide an effective removal of tumor during surgery, it is necessary to clearly distinguish it ...
R. Grigorev, A. Kuzikova, P. Demchenko, A. Senyuk, Anna Svechkova, A. Khamid, A. Zakharenko, M. Khodzitskiy   +7 more
semanticscholar   +1 more source

Manipulation of Emergent Collective Excitations via Composition Control in Mixed MPX3 Correlated 2D Antiferromagnets

Advanced Science, EarlyView.
Transition metal and chalcogen substituents are introduced into 2D antiferromagnet, NiPS3, and comprehensive photoluminescence and Raman spectroscopy studies are conducted to investigate how spin orbit entangled exciton and two magnon scattering evolve as functions of substituent concentration.
Cong Tai Trinh, Na Liu, Rabindra Basnet, Dinesh Upreti, Rijan Karkee, Vigneshwaran Chandrasekaran, Andrew C. Jones, Michael T. Pettes, Thuc T. Mai, Michael A. Susner, Jin Hu, Rahul Rao, Han Htoon   +12 more
wiley   +1 more source

Terahertz Spectroscopy in the Lab and at Telescopes [PDF]

, 2009
The section of the electromagnetic spectrum extending roughly from wavelengths of 3 mm to 30 μm is commonly known as the far-infrared or TeraHertz (THz) region.
Blake, Geoffrey A.
core  

The Interplay of Magnetic Order with the Electronic Scattering and Crystal‐Field Effects in a Metallic Ferromagnet

Advanced Science, EarlyView.
The interplay between magnetic ordering and crystal electric field (CEF) excitations plays a pivotal role in defining the low‐energy electrodynamics of quantum materials. By probing the temperature‐dependent THz conductivity in a rare‐earth‐based metallic ferromagnet, we uncover a microscopic connection between localized and itinerant electrons ...
Payel Shee, Tanaya Halder, Chia‐Jung Yang, Nainish Tickoo, Ratiranjan Samal, Ruta Kulkarni, Shishir K. Pandey, Vikas Kashid, Ashis K. Nandy, Arumugam Thamizhavel, Anamitra Mukherjee, Shovon Pal   +11 more
wiley   +1 more source