超相对论纳米等离子体激元作为一种新的极端强度阿秒脉冲的途径
Ultrarelativistic nanoplasmonics as a new route towards extreme intensity attosecond pulses
摘要：
通过激光等离子体相互作用产生的超强阿秒脉冲提供了超越任何已知实验室辐射源强度的机会，从而产生了新的实验可能性，例如量子电动力学测试和极短尺度的物质探测。在这里，我们表明，激光照射等离子体表面可以作为一个有效的转换器从毫微微到阿秒范围内，脉冲强度急剧上升。虽然在文献中已经提出了看似类似的计划，目前的设置偏离显着从以前的尝试。提出了一个描述相对论性激光与等离子体相互作用非线性过程的新模型。该模型，这是适用于众多的现象，被证明是在良好的协议与粒子在细胞模拟。通过我们的模型，我们提供了进行实验的必要细节。使用即将到来的10拍瓦激光源，达到10^26 W/cm ^2以上强度的可能性得到了证明。
英文摘要：
The generation of ultra-strong attosecond pulses through laser-plasma interactions offers the opportunity to surpass the intensity of any known laboratory radiation source, giving rise to new experimental possibilities, such as quantum electrodynamical tests and matter probing at extremely short scales. Here we demonstrate that a laser irradiated plasma surface can act as an efficient converter from the femto- to the attosecond range, giving a dramatic rise in pulse intensity. Although seemingly similar schemes have been presented in the literature, the present setup deviates significantly from previous attempts. We present a new model describing the nonlinear process of relativistic laser-plasma interaction. This model, which is applicable to a multitude of phenomena, is shown to be in excellent agreement with particle-in-cell simulations. We provide, through our model, the necessary details for an experiment to be performed. The possibility to reach intensities above 10^26 W/cm^2, using upcoming 10 petawatt laser sources, is demonstrated.
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