Results 151 to 160 of about 9,494 (293)
Chemistry – A European Journal, EarlyView.ABSTRACT The development of synthetic procedures for preparing metal nanoparticles with controlled size using sunlight opens new avenues toward more sustainable methods with lower energy consumption. Herein, we propose the use of double‐vacancy halide perovskites as precursors for engineering highly crystalline and small platinum nanoparticles (< 3 nm)
Kevin Mego +4 more
wiley +1 more source
Raman-Brillouin light scattering in low-dimensional systems: Photoelastic model versus quantum model
, 2007 International audienceRaman-Brillouin scattering by acoustic phonons in a free-standing nanosized silicon film is studied theoretically. Two well-known models are used to describe the inelastic light scattering.
Large, Nicolas +2 more
core +1 more source
Contributions to Plasma Physics, EarlyView.ABSTRACT The properties of plasmas in the low‐density limit are described by virial expansions. Analytical expressions are known for the lowest virial coefficients from Green's function approaches. Recently, accurate path‐integral Monte Carlo (PIMC) simulations were performed for the hydrogen plasma at low densities by Filinov and Bonitz (Phys. Rev.
Gerd Röpke +3 more
wiley +1 more source
A typical Brillouin light scattering spectrum in the SrLaALO4 (SLAO) crystal
Archives of Acoustics, 2002 A new wide-band frequency component in the Brillouin spectrum, arising from absorption, has been detected in the SLAO oxide crystal. This completes the typical Brillouin spectrum, where Rayleigh lines, inelastic Stokes and anti-Stokes ...
T. Błachowicz, Z. Kleszczewski
doaj
Ultrafast Transitions in X‐Ray Irradiated Solids
Contributions to Plasma Physics, EarlyView.ABSTRACT In this review, we present current developments on modeling ultrafast transitions in solids triggered by intense, atto‐ to femtosecond pulses from X‐ray free electron lasers. This specific irradiation regime requires dedicated simulation tools based on theoretical and computational methods, involving the elements of classical and quantum ...
Sebastião Antunes +3 more
wiley +1 more source
Single photon counting in brillouin laser light scattering experiments
Archives of Acoustics, 2014 What follows is a description of the electronics and simple mechanical equipment needed for single photon counting. It is intended as an introduction and guide to assist users in the measurement of Brillouin laser light scattering on acoustic hypersonic ...
T. BŁACHOWICZ
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HIGH THROUGHPUT STIMULATED BRILLOUIN SCATTERING SPECTROSCOPY
Brillouin light scattering arises from the coupled interaction between light and material acoustic phonons. The measurand of Brillouin scattering is the characteristic frequency difference between incident and scattered light which depends on the local ...
Rosvold, Jake Robert
core +1 more source
WONOEP XVII appraisal: The role of the extracellular matrix in epilepsy
Epilepsia, EarlyView.Abstract The extracellular matrix (ECM) is composed of proteoglycans and glycoproteins that regulate the external environment surrounding neurons, glia, and the vascular system. The ECM is vital for maintaining the structure and function of the brain and also acts as a reservoir for various signaling molecules and neurotransmitters, modulating synaptic
Eleonora Lugara +7 more
wiley +1 more source
Laser &Photonics Reviews, EarlyView.This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley +1 more source
Stimulated Forward Brillouin Scattering in Subwavelength Grating Silicon Membranes
Laser &Photonics Reviews, EarlyView.This work proposes a novel strategy to achieve large Brillouin scattering with independent control of the optical and mechanical modes using subwavelength silicon membranes. We experimentally demonstrate remarkably high Brillouin gain, resulting in an on/off Stokes gain of 3 dB and anti‐Stokes loss of 4 dB in a 6 mm‐long waveguide with 35 mW of on‐chip
Paula Nuño Ruano +8 more
wiley +1 more source