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Propagation of intense short-pulse laser in homogeneous near-critical density plasmas

机译:强短脉冲激光在均质近临界密度等离子体中的传播

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摘要

Ultraintenselaserlightpropagationinahomogeneousoverdenseplasmawasinvestigatedusingaplasticfoamtargetfillingapolyimidetube.LaserpropagationintooverdenseplasmawasmeasuredviaDopplerredshiftofthereflectedlaserlightfromthemovingplasmaat0.3-0.4ofspeedoflight.Wealsoobservedstronglycollimatedelectronbeampossiblycausedbythemagneticfieldsurroundingtheplasmachannel,andhighenergyX-raysemittedviasynchrotronradiationbytheoscillatingelectronsinsidethechannel.ThesefeaturesimplythatUILpropagatesinsidetheoverdenseplasmaaspredictedinPICcalculation,andareveryimportantfordirectirradiationschemeoffastignition...
机译:Ultraintenselaserlightpropagationinahomogeneousoverdenseplasmawasinvestigatedusingaplasticfoamtargetfillingapolyimidetube.LaserpropagationintooverdenseplasmawasmeasuredviaDopplerredshiftofthereflectedlaserlightfromthemovingplasmaat0.3-0.4ofspeedoflight.Wealsoobservedstronglycollimatedelectronbeampossiblycausedbythemagneticfieldsurroundingtheplasmachannel,andhighenergyX-raysemittedviasynchrotronradiationbytheoscillatingelectronsinsidethechannel.ThesefeaturesimplythatUILpropagatesinsidetheoverdenseplasmaaspredictedinPICcalculation,andareveryimportantfordirectirradiationschemeoffastignition ...

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