Study on AC-DC Electrical Conductivities in Warm Dense Matter Generated by Pulsed-power Discharge with Isochoric Vessel

摘要

ToobserveACandDCelectricalconductivityinwarmdensematter(WDM),wehavedemonstratedtoapplythespectroscopicellipsometryforapulsed-powerdischargewithisochoricvessel.At10μsfromthebeginningofdischarge,thegeneratedparametersbyusingpulsed-powerdischargewithisochoricvesselare0.1ρs(ρs:soliddensity)ofdensityand4000Koftemperature,respectively.TheDCelectricalconductivityforaboveparametersisestimatedtobe104S/m.InordertomeasuretheACelectricalconductivity,wehavedevelopedafour-detectorspectroscopicellipsometerwithamultichannelspectrometer.Themultichannelspectrometer,inwhichconsistsofa16-channelphotodiodearray,atwo-stagesvoltageadder,andaflatdiffractiongrating,has10MHzofthefrequencyresponsewithcoveredvisiblespectrum.Forapplyingthefour-detectorspectroscopicellipsometer,weobservetheeachobservationsignalevolvesthepolarizedbehaviorcomparedtotheratioasI1/I2...