Results 251 to 260 of about 229,074 (292)
Ultrafast dynamics of vibronically dressed core excitons in graphite: a femtosecond RIXS perspective. [PDF]
Nat CommunMalvestuto M +18 more
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From Ultrafast Holography to Ultrafast Tomography
Digital Holography and 3-D Imaging 2022, 2022We present a setup capable of performing optical diffraction tomography with femtosecond pulses broader than 100nm. This will allow recording ultrafast processes in three dimensions with spectral resolution.
Martin Hörmann +4 more
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ELECTROPHORESIS, 2016
The influence of a high electric field applied on both fluid flow and particle velocities is quantified at large Peclet numbers. The experiments involved simultaneous particle image velocimetry and flow rate measurements. These are conducted in polydimethylsiloxane channels with spherical nonconducting polystyrene particles and DI water as the ...
Mehrnaz, Rouhi Youssefi +1 more
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The influence of a high electric field applied on both fluid flow and particle velocities is quantified at large Peclet numbers. The experiments involved simultaneous particle image velocimetry and flow rate measurements. These are conducted in polydimethylsiloxane channels with spherical nonconducting polystyrene particles and DI water as the ...
Mehrnaz, Rouhi Youssefi +1 more
openaire +2 more sources
Journal of Magnetic Resonance, 2014
We describe a new MR imaging method for the rapid characterization or screening of chemical exchange saturation transfer (CEST) contrast agents. It is based on encoding the chemical shift dimension with an additional gradient as proposed in previous ultrafast CEST spectroscopy approaches, but extends these with imaging capabilities.
Jörg Döpfert +3 more
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We describe a new MR imaging method for the rapid characterization or screening of chemical exchange saturation transfer (CEST) contrast agents. It is based on encoding the chemical shift dimension with an additional gradient as proposed in previous ultrafast CEST spectroscopy approaches, but extends these with imaging capabilities.
Jörg Döpfert +3 more
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Science, 1993
Mise en forme d'une impulsion femtoseconde par un systeme: reseau de diffraction, lentilles, et masque. Emploi de cristaux liquide pour la realisation du masque (modulateur spatial)
M M, Wefers, K A, Nelson
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Mise en forme d'une impulsion femtoseconde par un systeme: reseau de diffraction, lentilles, et masque. Emploi de cristaux liquide pour la realisation du masque (modulateur spatial)
M M, Wefers, K A, Nelson
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Physics World, 2010
Since the first days of the ruby laser 50 years ago, laser systems have steadily improved thanks to advances in laser gain media and mirror technology. On the one hand, incredibly powerful lasers have been developed for fusion research that are able to deliver huge pulses of energy to their targets, resulting in local environments similar to the ...
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Since the first days of the ruby laser 50 years ago, laser systems have steadily improved thanks to advances in laser gain media and mirror technology. On the one hand, incredibly powerful lasers have been developed for fusion research that are able to deliver huge pulses of energy to their targets, resulting in local environments similar to the ...
openaire +2 more sources
Ultrafast infrared spectroscopy
Science, 1992Recent advances in ultrafast infrared spectroscopy are described, including experimental details and fundamental limitations. The utility of this technique is illustrated with two recent examples.
P O, Stoutland, R B, Dyer, W H, Woodruff
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Physical Chemistry Chemical Physics, 2012
Editorial focusing on ultrafast chemical dynamics.
Wynne, Klaas, Hunt, Neil T.
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Editorial focusing on ultrafast chemical dynamics.
Wynne, Klaas, Hunt, Neil T.
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Annual Meeting Optical Society of America, 1988
Optoelectronic devices and measurement techniques now operate at speeds ranging from picoseconds to hundreds of femtoseconds, have a dynamic range that extends from microvolts to kilovolts, are virtually jitter-free, and can make measurements in a wide variety of circuits, devices, and materials without requiring direct electrical contacts to the ...
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Optoelectronic devices and measurement techniques now operate at speeds ranging from picoseconds to hundreds of femtoseconds, have a dynamic range that extends from microvolts to kilovolts, are virtually jitter-free, and can make measurements in a wide variety of circuits, devices, and materials without requiring direct electrical contacts to the ...
openaire +1 more source