对飞秒激光等离子体中成丝现象的研究
대비초격광등리자체중성사현상적연구
STUDY ON FILAMENTATION IN FEMTOSECOND LASER PLASMAS
  • 万方数据
    物理学报 물이학보

    2001年 2期 204-208 ,共5页

    李玉同%张杰%陈黎明%赵理曾%夏江帆%腾浩%李英骏%朱成银%江文勉

    리옥동%장걸%진려명%조리증%하강범%등호%리영준%주성은%강문면

    飞秒激光等离子体%有质动力成丝 飛秒激光等離子體%有質動力成絲
    비초격광등리자체%유질동력성사
    采用光学阴影法和散射光成像，对飞秒激光等离子体中的局域密度涨落进行了研究.在实验中观察到了成丝不稳定性现象.从理论上对有质动力引起的局域密度涨落进行了分析.分析表明，这种成丝不稳定性主要是由有质动力造成的.
    채용광학음영법화산사광성상，대비초격광등리자체중적국역밀도창락진행료연구.재실험중관찰도료성사불은정성현상.종이론상대유질동력인기적국역밀도창락진행료분석.분석표명，저충성사불은정성주요시유유질동력조성적.
    The local density fluctuation in femtosecond laser plasmas has been studied using optical shadowgraphy and scattering imaging techniques.The instability of filamentation in the laser plasma has been observed,and the local density fluctuation studied.The result shows that this instability of filamentation is caused by the ponderomotive force.
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