Results 101 to 110 of about 1,816,894 (319)

Spectrally Programmable Spin‐Polarized Photocurrents in WSe2–NiPS3 Magnetic van der Waals Heterostructures

Advanced Materials, EarlyView.
Heterostructure photodiode devices of p‐type WSe2 with n‐type NiPS3 constructs spectrally protected spin‐polarized photocurrents. The energy of the excitation photon serves as an independent control parameter for spin‐selective photocurrent generation. ABSTRACT Efficient generation and control of spin‐polarized currents in semiconductors remain central
Rajesh Kumar Yadav, Michal Poplinger, Adi Levi, Adi Harchol, Nirman Chakraborty, Thomas Brumme, Thomas Heine, Efrat Lifshitz, Doron Naveh   +8 more
wiley   +1 more source

Imide Substitution Drives the Supramolecular Assembly of Perylene Diimide Into Laterally Modulated Metallic/Semiconducting Molecular Patterns

Advanced Materials Interfaces, EarlyView.
Imide substitution with bulky 2,6‐isopropylphenyl groups induces perylene diimide to self‐assemble on Ag(111) into a monolayer with two coexisting adsorption heights. Molecules closer to the substrate gain metallic character due to charge transfer from the metal, while farther ones remain decoupled and semiconducting.
Giacomo Agnesod, Simone Pistillo, Davide Piva, Luca Schio, Daniele Toffoli, Davide Bidoggia, Maria Peressi, Alberto Morgante, Albano Cossaro, Luca Floreano, Giovanna Fronzoni, Martina Dell'Angela, Roberto Costantini   +12 more
wiley   +1 more source

Ultranarrow-linewidth stimulated Brillouin scattering with fundamental acoustic waves

APL Photonics
Stimulated Brillouin scattering is a well-known nonlinear optical interaction valued for applications including narrow-linewidth lasers, phase conjugation, sensing, and RF-signal processing such as delay lines and filters.
Wendao Xu, Maxime Zerbib, Arjun Iyer, Kien Phan Huy, Jean-Charles Beugnot, William H. Renninger   +5 more
doaj   +1 more source

Brillouin cooling in a linear waveguide

New Journal of Physics, 2016
Brillouin scattering is not usually considered as a mechanism that can cause cooling of a material due to the thermodynamic dominance of Stokes scattering in most practical systems.
Yin-Chung Chen, Seunghwi Kim, Gaurav Bahl   +2 more
doaj   +1 more source

Unifying Brillouin scattering and cavity optomechanics [PDF]

, 2015
So far, Brillouin scattering and cavity optomechanics have been mostly disconnected branches of research, although both deal with photon-phonon coupling. This begs for the development of a broader theory that contains both fields.
R. Van Laer, R. Baets, D. van Thourhout
semanticscholar   +1 more source

ESA´s Wind Lidar Mission ADM-Aeolus: On-Going Scientific Activities Related to Calibration, Retrieval and Instrument Operation [PDF]

, 2010
The Earth Explorer Atmospheric Dynamics Mission (ADM-Aeolus) of ESA will be the first-ever satellite to provide global observations of wind profiles from space.
Vieitez, M. O., Stoffelen, A., Le Rille, O., Kloe, J., de Kloe, J., Vieitez, M.O., Ubachs, W.M.G., Ubachs, W., van de Water, W., Witschas, B., Ubachs, W.M.G.; id_orcid, Rille, O., Houchi, K., Körnich, H., Straume, A.-G., Schyberg, H., Marseille , G. J., Straume, A.G., Reitebuch, O., Marseille, G.J.   +19 more
core  

Electrically Reconfigurable Optical Initialization of Spin Valley Polarization in Monolayer WS2 Enabled by Switchable Dual‐Mode Liquid Crystal Lasers

Advanced Optical Materials, EarlyView.
This work presents an electrically controllable approach to spin–valley polarization in monolayer WS2 by integrating it with a dual‐mode liquid crystal laser. Applying an external field triggers phase transitions that switch the laser emission between helicity‐defined band‐edge lasing and unpolarized random lasing.
Yu‐Chuan Tsao, Ya‐Ping Hsieh, Yang‐Fang Chen, Hui‐Yu Chen   +3 more
wiley   +1 more source

The elastic stiffness tensor of cellulosic viscose fibers measured with Brillouin spectroscopy

JPhys Photonics
Brillouin light scattering spectroscopy is applied to study the micromechanics of cellulosic viscose fibers, one of the commercially most important, man-made biobased fibers.
Caterina Czibula, Manfred H Ulz, Alexander Wagner, Kareem Elsayad, Ulrich Hirn, Kristie J Koski   +5 more
doaj   +1 more source

Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys

Advanced Science, EarlyView.
This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin, Cheng‐Wei Lee, Nate S.P. Bernstein, Thi Nguyen, Ande Bryan, Eli Cooper, John S. Mangum, Sage R. Bauers, Andriy Zakutayev, Keisuke Yazawa, Prashun Gorai, Rebecca W. Smaha   +11 more
wiley   +1 more source

Type‐II Dirac Fermions in Monolayer In2O: Interplay of Magnetotransport, Spin Hall Effect, and Superconductivity

Advanced Science, EarlyView.
First‐principles calculations reveal that monolayer In2O${\rm In}_2{\rm O}$ hosts type‐II Dirac fermions near the Fermi level, which split into Weyl points under spin‐orbit coupling. The material exhibits negative and giant magnetoresistance, a pronounced spin Hall effect, and phonon‐mediated superconductivity at 1.5 K, establishing it as a unique ...
Qing‐Bo Liu, De‐Ming Feng, Wen‐Neng Zhao, Yu‐Yang Zhao, Lun Xiong, Xing‐Yi Tan, Hua‐Hua Fu   +6 more
wiley   +1 more source