Parametric dependence of collisional heating of highly magnetized over-dense plasma by(far-)infrared lasers  

作　　者：K.Li W.Yu 

机构地区：[1]Department of Physics,College of Science,Shantou University,Shantou 515063,China [2]Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

出　　处：《High Power Laser Science and Engineering》2022年第4期7-13,共7页高功率激光科学与工程（英文版）

基　　金：the Start-up fund from Shantou University(No.NTF21003);the Science and Technology Fund of Guangdong Province(No.STKJ2021018);the National Natural Science Foundation of China(NSFC)(No.12075317).

摘　　要：Heating of over-dense plasma represents a long-standing quest in laser-plasma physics.When the strength of the magnetic field is above the critical value,a right-handed circularly polarized laser could propagate into and heat up the highly magnetized over-dense collisional plasma directly;the processes are dependent on the parameters of the laser,plasma and magnetic field.The parametric dependence is fully studied both qualitatively and quantitatively,resulting in scaling laws of the plasma temperature,heating depth and energy conversion efficiency.Such heating is also studied with the most powerful CO_(2) and strongest magnetic field in the world,where plasma with density of 10^(23)cm^(-3) and initial temperature of 1 keV is heated to around 10 keV within a depth of several micrometres.Several novel phenomena are also discovered and discussed,that is,local heating in the region of high density,low temperature or weak magnetic field.

关 键 词：highly magnetized plasma over-dense plasma collisional heating parametric dependence 

分 类 号：TN24[电子电信—物理电子学] O53[理学—等离子体物理]