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物理学报. 2004, 53(3): 798-802.
doi: 10.7498/aps.53.798.
周期量级超短激光脉冲在近临界密度等离子体中形成的光孤子
- 收稿日期: 2003-02-10
- 修回日期: 2003-03-31
- 刊出日期: 2004-03-15
English Abstract
Solitons formed by ultrashort laser pulses propagating in a plasma
- Received Date:
10 February 2003
- Accepted Date:
31 March 2003
- Published Online:
15 March 2004
Abstract: Using one-dimensional particle-in-cell simulations, we observed the formation of solitons which can move with high group velocities when ultrashort laser pulses at a few cycles only propagate in underdense plasma near the critical density. There exist reflection and transmission when the solitons arrive at the plasma-vacuum boundary. When the intensity of initial laser pulses increases, the velocity of the formed solitons decreases. When a laser pulse at a few tens of cycles propagates in such a plasma, a cluster of solitons are left behind, and trapped in the plasma.
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Keywords:
- soliton /
- ultrashort laser pulse /
- plasma /
- particle-in-cell simulations
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