Results 171 to 180 of about 9,630 (218)

Nonvolatile nematic order manipulated by strain and magnetic field in a layered antiferromagnet. [PDF]

open access: yesNat Commun
Feng Z   +8 more
europepmc   +1 more source

Reconfigurable Geometric Phase Matching by Multilayered Nonlinear Thin‐Film Crystals

open access: yesLaser &Photonics Reviews, EarlyView.
The concept of geometric phase matching is demonstrated as a dynamically reconfigurable approach for tunable nonlinear wave mixing in multilayered nonlinear thin‐film crystals. Experimental results reveal full modulation in a bilayer structure and near‐perfect spin‐selective phase matching of second‐harmonic generation in an eight‐layer configuration ...
Danielle Ben‐Haim   +3 more
wiley   +1 more source

Exploring the extremes: The cosmic laboratory. [PDF]

open access: yesInnovation (Camb)
Huang Y, He S, Ge L, Li Z, Mao Y, Liu J.
europepmc   +1 more source

Wavefront Shaping for Optimal Extinction of Focused Light by Individual Nanoscatterers

open access: yesLaser &Photonics Reviews, EarlyView.
Wavefront shaping enables near‐complete optical extinction by nanoscatterers separated from a planar reflector. Time‐reversed emission profiles provide optimal illumination conditions, yielding 70% extinction from a single plasmonic nanoparticle and up to 90% from sub‐wavelength nanoparticle clusters, offering a promising route to efficient in‐ and out‐
Nick Feldman   +5 more
wiley   +1 more source

Detection of disk-jet coprecession in a tidal disruption event. [PDF]

open access: yesSci Adv
Wang Y   +48 more
europepmc   +1 more source

Time‐Modulated Optomechanics Reveal Energy Flow and Inelastic Interactions Between Acoustic Phonons in Nanomembranes

open access: yesLaser &Photonics Reviews, EarlyView.
Temporal interfaces are abrupt refractive index changes used in time‐varying optics, but also transitions to nonequilibrium states. This work explores the inelastic scattering of time‐varying light by nonthermal acoustic phonons in the vicinity of temporal interfaces.
Anuj Kumar Dhiman   +10 more
wiley   +1 more source

Nanoscale Geometrical Patterning for Junctionless Thermoelectrics. [PDF]

open access: yesACS Nano
Gonzalez-Munoz S   +14 more
europepmc   +1 more source

Ultimate Intrinsic SNR Depends on B0 Orientation

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This work aims to investigate the effect of B0$$ {B}_0 $$ orientation on the uiSNR in MRI. Methods Electromagnetic simulations were performed on both realistic body models and simplified geometric models. Comparisons between (1) opposite B0$$ {B}_0 $$ directions along the head‐foot (HF) axis, corresponding to head‐first and feet‐first ...
Yuting Wang   +4 more
wiley   +1 more source

Exploring Li growth modes in Li metal electrodes using X-ray nano-tomography. [PDF]

open access: yesNat Commun
Rizell J   +10 more
europepmc   +1 more source

Design of an In Vivo‐Like Phantom for Quantitative Body CEST MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To design and validate a reproducible in vivo‐like fat‐containing CEST phantom that enables robust quantitative CEST MRI for body applications by providing physiologically realistic relaxation properties, relevant endogenous CEST contrasts (amide, guanidino, rNOE, and semi‐solid MT), and a controlled fat component.
Petr Menshchikov   +5 more
wiley   +1 more source

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