Results 51 to 60 of about 215,527 (326)

Electronic and atomic kinetics in solids irradiated with free-electron lasers or swift-heavy ions

, 2015
In this brief review we discuss the transient processes in solids under irradiation with femtosecond X-ray free-electron-laser (FEL) pulses and swift-heavy ions (SHI).
Medvedev, N., Volkov, A. E., Ziaja, B.
core   +1 more source

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

Advanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li, Sugang Meng, Huijun Zhang, Alain R. Puente‐Santiago, Zhongliao Wang, Shifu Chen, Mario J. Muñoz‐Batista, Yu‐Ming Zheng, Bo Weng   +8 more
wiley   +1 more source

Femtosecond imaging of spatial deformation of surface plasmon polariton wave packet during resonant interaction with nanocavity

Nanophotonics, 2022
The spatiotemporal dynamics of a surface plasmon polariton (SPP) wave packet (WP) that interacts with a plasmonic nanocavity on a metal surface are investigated via femtosecond time-resolved two-photon fluorescence microscopy and numerical calculations ...
Ichiji Naoki, Otake Yuka, Kubo Atsushi
doaj   +1 more source

Nitrogen fluorescence emission pumped by femtosecond optical vortex beams

Frontiers in Physics, 2023
An experimental investigation on nitrogen fluorescence emissions pumped by a single 800 nm fs optical vortex (OV) beam with different topological charges (TC) is reported. The intensity of the two prototype emission lines from neutral nitrogen molecules (
You Chen, Xiaoman Man, Binxian Liu, Zhiyang Lin   +3 more
doaj   +1 more source

Femtosecond Coherent Control of Spin with Light in (Ga,Mn)As ferromagnets

, 2009
Using density matrix equations of motion, we predict a femtosecond collective spin tilt triggered by nonlinear, near--ultraviolet ($\sim$3eV), coherent photoexcitation of (Ga,Mn)As ferromagnetic semiconductors with linearly polarized light. This dynamics
C. Piermarocchi, I. E. Perakis, J. Wang, K. J. Wickey, M. D. Kapetanakis, W. Schäfer   +5 more
core   +1 more source

Ultrafast electron diffraction using an ultracold source [PDF]

, 2014
We present diffraction patterns from micron-sized areas of mono-crystalline graphite obtained with an ultracold and ultrafast electron source. We show that high spatial coherence is manifest in the visibility of the patterns even for picosecond bunches ...
Engelen, W. J., Luiten, O. J., van Mourik, M. W., Vredenbregt, E. J. D.   +3 more
core   +3 more sources

Chemical crystallography by serial femtosecond X-ray diffraction [PDF]

, 2022
Elyse A. Schriber⧓, Daniel W. Paley⧓, Robert Bolotovsky, Daniel J. Rosenberg, Raymond G. Sierra, Andrew Aquila, Derek Mendez, Frédéric Poitevin, Johannes Blaschke, Asmit Bhowmick, Ryan P. Kelly, Mark S. Hunter, Brandon Hayes, Derek Popple, Matthew Yeung, Carina Pareja‐Rivera, Stella Lisova, Kensuke Tono, Michihiro Sugahara, Shigeki Owada, Tevye Kuykendall, Kaiyuan Yao, P. James Schuck, Diego Solís-Ibarra, Nicholas K. Sauter, Aaron S. Brewster, J. Nathan Hohman   +26 more
openalex   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

Probing C₆₀ Fullerenes from within Using Free Electron Lasers

Atoms, 2022
Fullerenes, such as C60, are ideal systems to investigate energy redistribution following substantial excitation. Ultra-short and ultra-intense free electron lasers (FELs) have allowed molecular research in a new photon energy regime.
Nora Berrah
doaj   +1 more source

Time-resolved refractive index and absorption mapping of light-plasma filaments in water

, 2007
By means of a quantitative shadowgraphic method, we performed a space-time characterization of the refractive index variation and transient absorption induced by a light-plasma filament generated by a 100 fs laser pulse in water.
Amrutha Gopal, Arnaud Couairon, Arnold, Audrius Dubietis, Centurion, Couairon, Couairon, Davis, Dubietis, Elles, Faccio, Gintaras Tamošauskas, Glezer, Gopal, Kolesik, Kumagai, Lian, Mao, Michael Tatarakis, Paolo Di Trapani, Rimtautas Piskarskas, Stefano Minardi, Sudrie, Sudrie, Sun, Trainoff   +25 more
core   +1 more source