简介：RecentexperimentalresultsonNIFrevealedamuchhigherstimulatedBrillouinscattering(SBS)andstimulatedRamanscattering(SRS)backscatterthanexpected;onepossiblereasonwasduetothecoherencebetweenincidentlaserbeams.Inourresearch,twolaserbeams(~1ns,~250J,527nmineachone)withdifferentcoherentdegreesbetweenthemfromtheSG-IIfacilitywereemployedtoirradiateanAuplatetarget;thebackscatterofSBSandSRSintherangeofthegivensolidanglehadbeenmeasured.Theresultsshowedthatitcouldchangedramaticallycorrespondingtothedifferenceofthecoherentdegreebetweenthetwolaserbeams,andtherewasusuallymoreintensebackscatterthehigherthecoherentdegreebetweentheincidentbeams.
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