Results 41 to 50 of about 179,343 (322)
Intense terahertz laser fields on a two-dimensional electron gas with Rashba spin-orbit coupling
, 2004 The spin-dependent density of states and the density of spin polarization of an InAs-based two-dimensional electron gas with the Rashba spin-orbit coupling under an intense terahertz laser field are investigated by utilizing the Floquet states to solve ...
J. L. Cheng, M. W. Wu, Xu J. Z.
core +1 more source
, 2017 The sensitivity of direct terahertz detectors based on self-mixing of terahertz electromagnetic wave in field-effect transistors is being improved with noise-equivalent power close to that of Schottky-barrier-diode detectors.
Li, Xiang(李想) +9 more
core +1 more source
Terahertz Quantum Cryptography [PDF]
IEEE Journal on Selected Areas in Communications, 2020 REVTeX. 14 pages. 5 figures.
Carlo Ottaviani +6 more
openaire +5 more sources
Analysis of a narrowband terahertz signal generated by a unitravelling carrier photodiode coupled with a dual-mode semiconductor Fabry–Pérot laser [PDF]
, 2010 A narrowband terahertz signal generated by a unitravelling carrier photodiode (UTC-PD) interfaced with a dual-mode Fabry–Pérot laser diode is demonstrated.
Akalin, Tahsin +8 more
core +2 more sources
Analytical Terahertz Spectroscopy
Analytical Sciences, 2008 Recent progress in analytical terahertz (THz) spectroscopy is reviewed with illustrative examples showing that it is an effective method for detecting and identifying intermolecular interactions in chemical compounds, such as hydrogen bonds. The unique and characteristic properties of THz waves, their significance to both science and industry, and the ...
Yuko, Ueno, Katsuhiro, Ajito
openaire +3 more sources
Frontiers of Optoelectronics, 2020 Developing efficient and robust terahertz (THz) sources is of incessant interest in the THz community for their wide applications. With successive effort in past decades, numerous groups have achieved THz wave generation from solids, gases, and plasmas. However, liquid, especially liquid water has never been demonstrated as a THz source.
Qi, Jin, E, Yiwen, Xi-Cheng, Zhang
openaire +3 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 +3 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 +6 more
core +1 more source
Optics Express, 2011 Typical lenses suffer from Fresnel reflections at their surfaces, reducing the transmitted power and leading to interference phenomena. While antireflection coatings can efficiently suppress these reflections for a small frequency window, broadband antireflection coatings remain challenging.
Matthias, Wichmann +7 more
openaire +2 more sources
Terahertz Nanofocusing with Cantilevered Terahertz-Resonant Antenna Tips [PDF]
Nano Letters, 2017 We developed THz-resonant scanning probe tips, yielding strongly enhanced and nanoscale confined THz near fields at their tip apex. The tips with length in the order of the THz wavelength (λ = 96.5 μm) were fabricated by focused ion beam (FIB) machining and attached to standard atomic force microscopy (AFM) cantilevers.
Stefan Mastel +9 more
openaire +3 more sources