相対論的プラズマ物理学 2.超高強度レーザー場中の荷電粒子の相対論的運動
相対論的プラズマ物理学 2.超高強度レーザー場中の荷電粒子の相対論的運動
复制标题
相对论等离子体物理2.超高强度激光场中带电粒子的相对论运动
DOI:
10.1585/jspf.78.341
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
英明 高部
中科院分区:
文献类型:
--
作者:
英明 高部
Electron motions in laser fields are analyzed in cases when the laser field is non-relativistic and when it is relativistic. The typical eight-figure motion of an electron is obtained in weak laser field plane-polarized, while no such figure motion in circular-polarized case. Starting from the Lagrangian for an electron in a plane-polarized electromagnetic wave, constants of motions and the electron orbits are analytically obtained. It is demonstrated that the electron drifts with a constant velocity in the direction of wave propagation, and that the eight-figure motion is seen in the frame moving with the drift motion. In the case of the circular-polarize wave, the electron orbit is a spiral having the drift velocity same as does the plane-polarization.