Results 81 to 90 of about 126,566 (298)

Single Pair of Weyl Points Evolve From Spin Group‐Protected Nodal Line in Half‐Metallic Ferromagnet V3S4

Advanced Functional Materials, EarlyView.
A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian, Yao Zhang, Xiaowei Sheng, Xiuxian Yang, Gang Zhang, Junfeng Gao, Xiaotian Wang   +6 more
wiley   +1 more source

Laser Pulse Shortening via Zero-Dispersion Phase Matching of Parametric Raman Interactions in Crystals

Crystals, 2020
We propose and study the conditions of zero-dispersion phase matching for parametric Raman interactions in birefringent crystals differing by anisotropy of zero-dispersion wavelength and allowing for the spectral tuning of the zero-dispersion phase ...
Sergei N. Smetanin, Michal Jelínek, Dmitry P. Tereshchenko, Mikhail N. Ershkov, Václav Kubeček   +4 more
doaj   +1 more source

The Sunyaev-Zeldovich Effect and Its Cosmological Significance [PDF]

, 2001
Comptonization of the cosmic microwave background (CMB) radiation by hot gas in clusters of galaxies - the Sunyaev-Zeldovich (S-Z) effect - is of great astrophysical and cosmological significance.
A Challinor, AS Kompaneets, DM Fabricant, E Pointecouteau, FX Desert, JE Carlstrom, JM Lamarre, JP Hughes, M Birkinshaw, M Jones, M Markevitch, N Itoh, PD Mauskopf, RA Sunyaev, RA Sunyaev, RA Sunyaev, S Colafrancesco, S Colafrancesco, S Nozawa, S Nozawa, S Nozawa, S Zaroubi, SY Sazonov, SY Sazonov, T Kitayama, U Seljak, WL Holzapfel, WL Holzapfel, Y Rephaeli, Y Rephaeli, Y Rephaeli, Y Rephaeli, Y Rephaeli, YB Zeldovich   +33 more
core   +2 more sources

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Temperature induced changes in the optical properties of skin in vivo

Scientific Reports, 2021
Knowledge of temperature-induced changes of skin optical properties is required for accurate dosimetry of photothermal treatments. We determined and compared in vivo optical properties of mouse ear skin at different temperatures. The diffuse reflectance,
Tyler W. Iorizzo, Peter R. Jermain, Elena Salomatina, Alona Muzikansky, Anna N. Yaroslavsky   +4 more
doaj   +1 more source

The Imprint of Gravitational Waves in Models Dominated by a Dynamical Cosmic Scalar Field [PDF]

, 1997
An alternative to the standard cold dark matter model has been recently proposed in which a significant fraction of the energy density of the universe is due to a dynamical scalar field ($Q$) whose effective equation-of-state differs from that of matter,
A. A. Starobinskii, A. H. Guth, A. I. Starobinskii, A. Liddle, C.-P. Ma, D. Salopek, David N. Spergel, David N. Spergel, F. Lucchin, G. Jungman, J. E. Lidsey, J. M. Bardeen, Kimberly Coble, L. F. Abbott, L. Knox, L. Krauss, L. Wang, Lloyd Knox, M. Kamionkowski, Michael S. Turner, P. T. P. Viana, Paul J. Steinhardt, Pedro G. Ferreira, R. Crittenden, R. L. Davis, R. R. Caldwell, R. R. Caldwell, S. W. Hawking, U. Seljak, V. A. Rubakov, V. Sahni, Wayne Hu   +31 more
core   +3 more sources

Light‐Controlled Reversible Coassembly of Hybrid Functional Nanostructures

Advanced Functional Materials, EarlyView.
Light‐responsive hybrid nanostructures are formed by coassembling azobenzene‐ and PAH‐functionalized nanoparticles through reversible an tunable π interactions. The system enables tunable coupling between distinct components such as gold and magnetite or carbon nanotubes, producing switchable optical and magnetic properties under light and magnetic ...
Michal Sawczyk, Yanxiao Han, Soumyo Sen, Bartosz Smereczyński, Petr Král, Michał M. Wójcik   +5 more
wiley   +1 more source

The primordial "f_NL" non-Gaussianity, and perturbations beyond the present horizon

, 2009
We show a primordial non-linear "f_NL" term may produce unphysically large CMB anisotropy for a red-tilted primordial power spectrum ...
Andrew R. Liddle, European Space Agency, J. Clavel, Jaiseung Kim, Pavel Naselsky, Scott Dodelson, Viatcheslav Mukhanov, W H. Press   +7 more
core   +1 more source

Positions and sizes of X-ray solar flare sources [PDF]

, 2010
<p><b>Aims:</b> The positions and source sizes of X-ray sources taking into account Compton backscattering (albedo) are investigated.</p> <p><b>Methods:</b> Using a Monte Carlo simulation of X-ray photon ...
Bai, Balucinska-Church, Battaglia, Brown, Dennis, E. P. Kontar, Emslie, Fivian, Fletcher, Henke, Hurford, Kasparová, Kasparová, Kontar, Kontar, Kontar, Kosugi, Krucker, Krucker, Lin, Liu, Magdziarz, N. L. S. Jeffrey, Prato, Saint-Hilaire, Santangelo, Schmahl, Schmahl, Tomblin, Vernazza, Xu, Zhang   +31 more
core   +3 more sources

Design and application of a confocal microscope for spectrally resolved anisotropy imaging

Optics Express, 2011
Biophysical imaging tools exploit several properties of fluorescence to map cellular biochemistry. However, the engineering of a cost-effective and user-friendly detection system for sensing the diverse properties of fluorescence is a difficult challenge.
Esposito, A., Bader, A.N., Schlachter, S.C., van den Heuvel, D.J., Kaminski Schierle, G.S., Venkitaraman, A.R., Kaminski, C.F., Gerritsen, H.C.   +7 more
openaire   +4 more sources