Results 71 to 80 of about 246,481 (370)

Observation of Coulomb-Assisted Dipole-Forbidden Intraexciton Transitions in Semiconductors [PDF]

, 2012
We use terahertz pulses to induce resonant transitions between the eigenstates of optically generated exciton populations in a high-quality semiconductor quantum-well sample.
A. Chernikov, B. Breddermann, B. Ewers, G. Khitrova, H. M. Gibbs, H. Schneider, J. Bhattacharyya, J. Kono, L. Schneebeli, M. Helm, M. Kira, M. Kira, M. Koch, S. Chatterjee, S. W. Koch, S. Winnerl, S. Zybell, W. D. Rice   +17 more
core   +2 more sources

Contrast Enhancement for Topographic Imaging in Confocal Laser Scanning Microscopy

Applied Sciences, 2019
The influence of the axial pinhole position in a confocal microscope in terms of the contrast of the image is analyzed. The pinhole displacement method is introduced which allows to increase the contrast for topographic imaging.
Lena Schnitzler, Markus Finkeldey, Martin R. Hofmann, Nils C. Gerhardt   +3 more
doaj   +1 more source

Quantized conductance observed during sintering of silver nanoparticles by intense terahertz pulses

, 2018
We show that silver nanoparticles, which are deposited on a terahertz-receiving antenna, can be sintered by intense terahertz pulse irradiation. The conductance of the silver nanoparticles between the antenna electrodes is measured under the terahertz ...
Harada, Hirofumi, Nakajima, Makoto, Takano, Keisuke, Yoshimura, Masashi   +3 more
core   +1 more source

The 2017 terahertz science and technology roadmap

Journal of Physics D: Applied Physics, 2017
Science and technologies based on terahertz frequency electromagnetic radiation (100 GHz–30 THz) have developed rapidly over the last 30 years. For most of the 20th Century, terahertz radiation, then referred to as sub-millimeter wave or far-infrared ...
A. Leitenstorfer, A. S. Moskalenko, T. Kampfrath, J. Kono, E. Castro-Camus, K. Peng, N. Qureshi, D. Turchinovich, Koichiro Tanaka, A. Markelz, M. Havenith, Cameron Hough, H. Joyce, Willie J Padilla, Binbin Zhou, Ki-Yong Kim, Xi-Cheng Zhang, P. Jepsen, S. Dhillon, M. Vitiello, E. Linfield, A. Davies, M. Hoffmann, R. Lewis, M. Tonouchi, P. Klarskov, T. Seifert, Y. Gerasimenko, D. Mihailovic, R. Huber, J. Boland, O. Mitrofanov, P. Dean, B. Ellison, P. Huggard, S. Rea, C. Walker, D. Leisawitz, Jianxun Gao, Chong Li, Qin Chen, G. Valušis, V. Wallace, E. MacPherson, X. Shang, J. Hesler, N. Ridler, C. Renaud, I. Kallfass, T. Nagatsuma, A. Zeitler, D. Arnone, M. Johnston, J. Cunningham   +53 more
semanticscholar   +1 more source

Critical Factors for In Vivo Measurements of Human Skin by Terahertz Attenuated Total Reflection Spectroscopy

Sensors, 2020
Attenuated total reflection (ATR) geometry is a suitable choice for in vivo measurements of human skin due to the deep penetration of the field into the sample and since it makes it easy to measure the reference spectrum.
Lixia Wang, Sayon Guilavogui, Henghui Yin, Yiping Wu, Xiaofei Zang, Jingya Xie, Li Ding, Lin Chen   +7 more
doaj   +1 more source

Terahertz Non-Destructive Testing and Imaging of High-Voltage Cables

Frontiers in Physics, 2022
The evaluation of the internal defects in high-voltage cross-linked polyethylene cables is highly crucial for the security and reliability of power transmission.
Zhang Zhenwei, Zhang Zhenwei, Xu Jing, Jia Rui, Wu Yinghong, Guan Hao, Han Siyi, Zhang Cunlin, Zhao Yuejin   +8 more
doaj   +1 more source

Magic Wavelengths for Terahertz Clock Transitions [PDF]

, 2010
Magic wavelengths for laser trapping of boson isotopes of alkaline-earth Sr, Ca and Mg atoms are investigated while considering terahertz clock transitions between the $^{3}P_{0}, ^{3}P_{1}, ^{3}P_{2}$ metastable triplet states.
C. E. Moore, C. H. Corliss, J. Chen, Jingbiao Chen, Xia Xu, Xiaoji Zhou, Xuzong Chen   +6 more
core   +1 more source

Spintronic terahertz emitters with integrated metallic terahertz cavities [PDF]

Nanophotonics
Abstract Spintronic terahertz emitters (STEs), based on optical excitation of nanometer thick ferromagnetic/heavy metal (FM/HM) heterojunctions, have become important sources for the generation of terahertz (THz) pulses. However, the efficiency of the optical-to-THz conversion remains limited.
Mičica, Martin, Wright, Adrien, Koleják, Pierre, Lezier, Geoffrey, Postava, Kamil, Hawecker, Jacques, de Vetter, Anna, Tignon, Jérôme, Mangeney, Juliette, Jaffrès, Henri, Lebrun, Romain, Tiercelin, Nicolas, Vanwolleghem, Mathias, Dhillon, Sukhdeep   +13 more
openaire   +5 more sources

Terahertz Atmospheric Windows for High Angular Resolution Terahertz Astronomy from Dome A [PDF]

, 2019
Atmospheric transmission from Dome A, Antarctica, presents new possibilities in the field of terahertz astronomy, where space telescopes have been the only observational tools until now.
Lin, Zhen-Hui, Matsuo, Hiroshi, Paine, Scott, Shi, Sheng-Cai, Yao, Qi-Jun   +4 more
core   +2 more sources

Heat Conduction Modulation in Incommensurate Twisted Stacking of Transition‐Metal Dichalcogenide

Advanced Functional Materials, EarlyView.
The interlayer thermal conductance in twisted bilayer TMDs is initially investigated experimentally by the thermoreflectance method. The overlap of lattice vibrations within individual layers and the interlayer interactions, as elucidated through both Raman spectroscopy and molecular dynamics simulations, are demonstrated to be critical factors in ...
Bin Xu, Meng An, Satoru Masubuchi, Yuanzhe Li, Rulei Guo, Tomoki Machida, Junichiro Shiomi   +6 more
wiley   +1 more source