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Guiding of laser pulses in plasma waveguides created by linearly-polarized femtosecond laser pulses

机译:线性极化飞秒激光脉冲在等离子波导中引导激光脉冲

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摘要

We experimentally demonstrate that plasma waveguides produced with ultra-short laser pulses (sub-picosecond) in gas jets are capable of guiding high intensity laser pulses. This scheme has the unique ability of guiding a high-intensity laser pulse in a plasma waveguide created by the same laser system in the very simple and stable experimental setup. A hot plasma column was created by a femtosecond class laser that expands into an on-axis parabolic low density profile suitable to act as a waveguide for high intensity laser beams. We have successfully guided ~1015 W cm−2 laser pulses in a 8 mm long hydrogen plasma waveguide with a 35% guiding efficiency.
机译:我们通过实验证明,在气体喷嘴中用超短激光脉冲(亚皮秒)产生的等离子体波导能够引导高强度激光脉冲。该方案具有在非常简单和稳定的实验设置中引导由同一激光系统创建的等离子波导中的高强度激光脉冲的独特能力。飞秒级激光产生了一个热等离子体柱,该激光柱扩展为适合用作高强度激光束的波导的同轴抛物线形低密度分布。我们已经成功地在8 mm长的氢等离子体波导中以10%的引导效率引导了大约10 15 W cm −2 激光脉冲。

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