Results 111 to 120 of about 9,494 (293)

Brillouin light scattering from surface acoustic waves in a sub-wavelength diameter optical fibre

open access: yes, 2014
International audienceBrillouin scattering in optical fibres is a fundamental interaction between light and sound with important implications ranging from optical sensors to slow and fast light. In usual optical fibres, light both excites and feels shear
Lebrun, Sylvie   +5 more
core   +1 more source

Multifaceted Roles of Tantalum in Promoting the Thermoelectric Performance of Mg3(Sb,Bi)2 Based Materials

open access: yesAdvanced Science, EarlyView.
A multifunctional tantalum incorporation strategy enables simultaneous tuning of carrier concentration, mitigation of grain‐boundary scattering, and enhanced phonon scattering in Mg3(Sb,Bi)2. These synergistic effects markedly improve carrier mobility and suppress lattice thermal conductivity, yielding both high material zT and high module conversion ...
Guangmeng You   +9 more
wiley   +1 more source

Consensus statement on Brillouin light scattering microscopy of biological materials

open access: yesNature Photonics
Main Text & Supplementary Text: 56 pages, 3 Figures, 2 Supplementary Figures, 1 Supplementary ...
Pierre Bouvet   +44 more
openaire   +4 more sources

Spontaneous Rayleigh-Brillouin scattering of ultraviolet light in nitrogen, dry air, and moist air [PDF]

open access: yes, 2010
Atmospheric lidar techniques for the measurement of wind, temperature, and optical properties of aerosols rely on the exact knowledge of the spectral line shape of the scattered laser light on molecules.
Witschas, B   +26 more
core   +1 more source

Imaging Electric Polarization Switching in Multilayer Graphene

open access: yesAdvanced Science, EarlyView.
Domain wall sliding‐induced electric polarization switching is directly observed for the first time in multilayer graphene, enabled by a novel optical readout method. The polarization switching is realized upon application of global and local electric fields, and mechanical forces between neighboring polar domains of opposite out‐of‐plane polarizations
Zhou Zhou   +10 more
wiley   +1 more source

Enhancing the properties of some inverse opal metamaterials by the stopband control

open access: yesMATEC Web of Conferences, 2018
The inverse opal structures present very good mechanical and optical properties, like high mechanical strength and Young modulus, important photoluminescence and stimulated Brillouin scattering.
Ionescu Daniela, Macovei Irina
doaj   +1 more source

Airborne direct-detection and coherent wind lidar measurements along the east coast of Greenland in 2009 supporting ESA’s Aeolus mission

open access: yes, 2011
The Aeolus mission of the European Space Agency (ESA) will send the first wind lidar to space to fulfill the utmost need for global wind profile observations.
Witschas, Benjamin   +11 more
core   +1 more source

Lewis‐Acid Engineering with Neodymium Promoters as Synergistic Nd‐Ni Dual Sites for Enhanced Urea Oxidation

open access: yesAdvanced Science, EarlyView.
The integration of rare‐metal neodymium centers to engineer Lewis acid sites with nickel centers is proposed as highly efficient UOR catalysts. ABSTRACT The sluggish kinetics of the urea oxidation reaction (UOR) are strongly associated with the high energy barriers required for the C‐N cleavage and N‐N coupling steps.
Mingfan Li   +8 more
wiley   +1 more source

Brillouin light scattering spectroscopy of cavity optomechanical crystals

open access: yesAPL Photonics
We present a detailed study of Brillouin light scattering (BLS) spectroscopy applied to phononic waveguides embedded within optomechanical crystal structures. By comparing numerical simulations with experimental spectra, we validate the capability of BLS
Guilhem Madiot   +2 more
doaj   +1 more source

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