Chirped pulse compression in nonuniform plasma Bragg gratings
Chirped pulse compression in nonuniform plasma Bragg gratings
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DOI：
10.1063/1.2132074
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发表时间：
2005-11
影响因子：
4
通讯作者：
Hui-Chun Wu;Z. Sheng;Jie Zhang
中科院分区：
文献类型：
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作者：
Hui-Chun Wu;Z. Sheng;Jie Zhang
利用两束高斯激光脉冲通过均匀等离子体板的反向传播，可以自然地产生具有单调递增的密度调制分布的非均匀等离子体布拉格光栅。这种等离子体光栅呈现出具有单调增加的宽度的非均匀光子带隙。它可以用来压缩正啁啾脉冲或负啁啾脉冲。粒子模拟结果表明，压缩后的脉冲几乎没有能量损失，压缩效率可达90%以上。
A nonuniform plasma Bragg grating with a monotonically increasing density-modulation profile can be naturally produced by two Gaussian laser pulses counterpropagating through a homogeneous plasma slab. Such a plasma grating exhibits a nonuniform photonic band gap with a monotonically increasing width. It can be used to compress a positively or negatively chirped pulse. Particle-in-cell simulations show that the compressed pulse has nearly no energy loss and the compression efficiency can exceed 90%.