Plasma optical shutter in ultraintense laser-foil interaction
نویسندگان
چکیده
منابع مشابه
Relativistic plasma shutter for ultraintense laser pulses.
A relativistic plasma shutter technique is proposed and tested to remove the sub-100 ps pedestal of a high-intensity laser pulse. The shutter is an ultrathin foil placed before the target of interest. As the leading edge of the laser ionizes the shutter material it will expand into a relativistically underdense plasma allowing for the peak pulse to propagate through while rejecting the low inte...
متن کاملMulti-MeV proton source investigations in ultraintense laser-foil interactions.
A study of the properties of multi-MeV proton emission from thin foils following ultraintense laser irradiation has been carried out. It has been shown that the protons are emitted, in a quasilaminar fashion, from a region of transverse size of the order of 100-200 microm. The imaging properties of the proton source are equivalent to those of a much smaller source located several hundred microm...
متن کاملInfluence of laser polarization on collective electron dynamics in ultraintense laser–foil interactions
The collective response of electrons in an ultrathin foil target irradiated by an ultraintense (∼6 × 1020 W cm−2) laser pulse is investigated experimentally and via 3D particle-in-cell simulations. It is shown that if the target is sufficiently thin that the laser induces significant radiation pressure, but not thin enough to become relativistically transparent to the laser light, the resulting...
متن کاملA compact, multiangle electron spectrometer for ultraintense laser-plasma interaction experiments.
Experiments on the multiterawatt (MTW) laser at the Laboratory for Laser Energetics will study the effect of the focal-spot shape on the forward acceleration and collimation of electrons. A compact electron spectrometer has been developed to record the energy spectra of electrons ejected in the interaction of the laser at multiple angular locations simultaneously. The modular system with replac...
متن کاملHot-electron energy coupling in ultraintense laser-matter interaction.
We investigate the hydrodynamic response of plasma gradients during the interaction with ultraintense energetic laser pulses, using kinetic particle simulations. Energetic laser pulses are capable of compressing preformed plasma gradients over short times while accelerating low-density plasma backwards. As light is absorbed on a steepened interface, hot-electron temperature and coupling efficie...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2017
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.5008843