Results 31 to 40 of about 113,253 (318)

Optical current generation in graphene: CEP control vs. ω + 2ω control

open access: yesNanophotonics, 2021
The injection of directional currents in solids with strong optical fields has attracted tremendous attention as a route to realize ultrafast electronics based on the quantum-mechanical nature of electrons at femto- to attosecond timescales.
Heide Christian   +3 more
doaj   +1 more source

Ultrafast Proteomics

open access: yesBiochemistry (Moscow)
Abstract Current stage of proteomic research in the field of biology, medicine, development of new drugs, population screening, or personalized approaches to therapy dictates the need to analyze large sets of samples within the reasonable experimental time.
Ivan I, Fedorov   +3 more
openaire   +2 more sources

Optical and Nonlinear Optical Response of Light Sensor Thin Films

open access: yesSensors, 2005
For potential ultrafast optical sensor application, both VO2 thin films andnanocomposite crystal-Si enriched SiO2 thin films grown on fused quartz substrates weresuccessfully prepared using pulsed laser deposition (PLD) and RF co-sputteringtechniques. In
S. Z. Weisz   +7 more
doaj   +1 more source

Phase Nanoscopy with Correlated Frequency Combs

open access: yesSensors, 2022
This study addresses any sensor based on measuring a physical quantity through the phase of a probing beam. This includes sensing of rotation, acceleration, index change, displacement, fields… While most phase measurements are made by detecting an ...
Xiaobing Zhu   +2 more
doaj   +1 more source

Ultrafast dynamics microscopy

open access: yesApplied Physics Letters, 2000
We report the three-dimensional imaging of the vibrational, solvent, orientational, and electronic relaxation in organic fluorescent samples at 200–500 nm spatial resolution. This is achieved in steady-state recordings by exciting the fluorophore with a femtosecond pulse and subsequent quenching with a time-delayed, redshifted femtosecond pulse through
Dyba, M., Klar, T., Jakobs, S., Hell, S.
openaire   +3 more sources

Symposium on Ultrafast Electron Microscopy and Ultrafast Science [PDF]

open access: yesMicroscopy and Microanalysis, 2009
Dynamic characterization techniques have been utilized in the fields of biology, chemistry, physics, and materials science for many years. Techniques range from neutron scattering to X-ray diffraction. Two of the fields experiencing much development recently have been electron-based techniques. Namely, ultrafast electron diffraction (UED) and ultrafast
Mitra L. Taheri   +2 more
openaire   +1 more source

Mid-infrared volume phase gratings manufactured using ultrafast laser inscription [PDF]

open access: yes, 2013
We report on the ultrafast laser inscription (ULI) of volume phase gratings inside gallium lanthanum sulphide (GLS) chalcogenide glass substrates. The effect of laser pulse energy and grating thickness on the dispersive properties of the gratings is ...
Thomson, Robert R   +3 more
core   +1 more source

Toward time-resolved laser T-jump/X-ray probe spectroscopy in aqueous solutions

open access: yesStructural Dynamics, 2019
Most chemical and biochemical reactions in nature and in industrial processes are driven by thermal effects that bring the reactants above the energy barrier for reaction.
O. Cannelli   +9 more
doaj   +1 more source

The Linac Coherent Light Source: Recent Developments and Future Plans

open access: yesApplied Sciences, 2017
The development of X-ray free-electron lasers (XFELs) has launched a new era in X-ray science by providing ultrafast coherent X-ray pulses with a peak brightness that is approximately one billion times higher than previous X-ray sources.
R. W. Schoenlein   +3 more
doaj   +1 more source

Ultrafast Photochemistry in Liquids

open access: yesAnnual Review of Physical Chemistry, 2013
Ultrafast photochemical processes can occur in parallel with the relaxation of the optically populated excited state toward equilibrium. The latter involves both intra- and intermolecular modes, namely vibrational and solvent coordinates, and takes place on timescales ranging from a few tens of femtoseconds to up to hundreds of picoseconds, depending ...
Rosspeintner, Arnulf   +2 more
openaire   +4 more sources

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