Results 1 to 10 of about 1,338,370 (143)
Photodiode-based time zero determination for ultrafast electron microscopy
Structural Dynamics, 2023 Pump-probe experiments in ultrafast electron microscopy require temporal overlap between the pump and probe pulses. Accurate measurements of the time delay between them allows for the determination of the time zero, the moment in time where both pulses ...
S. T. Kempers +5 more
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RF acceleration of ultracold electron bunches
Structural Dynamics, 2023 The ultrafast and ultracold electron source, based on laser cooling and trapping of atomic gas and its subsequent near-threshold two-step photoionization, is capable of generating electron bunches with a high transverse brightness at energies of roughly ...
D. F. J. Nijhof +5 more
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New Journal of Physics, 2022 Recently, we introduced a resonant microwave cavity as a diagnostic tool for the study of ultracold plasmas (UCPs). This diagnostic allows us to study the electron dynamics of UCPs non-destructively, very fast, and with high sensitivity by measuring the ...
M A W van Ninhuijs +2 more
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Sensorimotor integration is affected by acute whole-body vibration: a coherence study
Frontiers in Physiology, 2023 Introduction: Several whole-body vibration (WBV) effects on performance have been related to potential changes in the neural drive, motor unit firing rate, and sensorimotor integration. In the present paper, motor unit coherence analysis was performed to
E. Lecce +7 more
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Heartfulness meditation alters electroencephalogram oscillations: An electroencephalogram study
International Journal of Yoga, 2022 Background: Heartfulness meditation (HM) has been shown to have positive impacts on cognition and well-being, which makes it important to look into the neurophysiological mechanisms underlying the phenomenon. Aim: A cross-sectional study was conducted on
Dwivedi Krishna +5 more
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, 2014 We introduce a rigorous framework for the quantification of coherence and identify intuitive and easily computable measures of coherence. We achieve this by adopting the viewpoint of coherence as a physical resource.
Baumgratz, T, Cramer, M, Plenio, MB
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Extended Coherence Time with Atom-Number Squeezed Sources [PDF]
, 2006 Coherence properties of Bose-Einstein condensates offer the potential for improved interferometric phase contrast. However, decoherence effects due to the mean-field interaction shorten the coherence time, thus limiting potential sensitivity.
Ari K. Tuchman +4 more
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Single-cycle surface plasmon polaritons on a bare metal wire excited by relativistic electrons
Nature Communications, 2016 Here, the authors demonstrate how ultra-short bunches of relativistic electrons produce coherent transition radiation at the tip of a thin wire. The radiation then propagates as a powerful surface plasmon polariton along the wire, illustrating the ...
W.P.E.M. op ‘t Root +3 more
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Climate change adaptation, flood risks and policy coherence in integrated water resources management in England [PDF]
, 2016 Integrated water resources management (IWRM) assumes coherence between cognate aspects of water governance at the river basin scale, for example water quality, energy production and agriculture objectives.
A Jordan +45 more
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Coherence effects in propagation through photonic crystals [PDF]
Journal of the European Optical Society-Rapid Publications, 2006 We have analytically studied how a partially coherent quasi plane wave is affected by a photonic crystal structure including a grating. The analysis is presented for spatial and temporal cases showing the possibility to determine the coherence ...
Mandatori A. +4 more
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