论文标题
由燃气毛细血管中强烈的中红外脉冲驱动的超局部的非线性聚焦
Nonlinear focusing of supercontinuum driven by intense mid-infrared pulses in gas-filled capillaries
论文作者
论文摘要
强烈的中红外光 - 互动引起了广泛的关注，因为它在非线性光学元件中打开了新的边界。在这里，我们通过模拟观察高压气体毛细管中中红外脉冲动力学的新方面，该毛细管的脉冲具有远低于Kerr自我关注的临界功率的脉冲在极有效的光谱扩展之后经历了峰值强度的惊人升高。这种强度增强归因于KERR诱导的超脑聚焦。我们的研究提供了一个有趣的观点，可以通过中红外脉冲驱动的非线性光转化中可能应用来控制激光强度。
Strong mid-infrared light-matter interaction has attracted extensive attention as it opens up new frontiers in nonlinear optics. Here we observe through simulations a novel aspect of mid-infrared pulse dynamics in a high-pressure gas-filled capillary, where a pulse with a power well below the critical power for Kerr self-focusing undergoes an astonishing rise of the peak intensity following an extremely efficient spectral broadening. This intensity enhancement is attributed to the Kerr-induced focusing of the supercontinuum. Our study provides an interesting perspective for controlling the laser intensity with possible applications in nonlinear light conversion driven by mid-infrared pulses.
