Dependence of high-order-harmonic-generation yield on driving-laser ellipticity
Dependence of high-order-harmonic-generation yield on driving-laser ellipticity
复制标题
高次谐波产生率对驱动激光椭圆率的依赖性
DOI：
10.1103/physreva.86.011401
复制
发表时间：
2012
影响因子：
2.9
通讯作者：
Z. Chang
中科院分区：
文献类型：
--
作者：
M. Möller;Y. Cheng;S. D. Khan;B. Zhao;K. Zhao;M. Chini;G. G. Paulus;Z. Chang
高次谐波产生的产量是非常敏感的驱动激光椭圆率，这是有趣的，从基本的观点，以及应用。最著名的例子是通过偏振选通产生孤立的阿秒脉冲。我们开发了一个直观的半经典模型，该模型利用最近测量的隧道电离的初始横向动量。该模型能够预测高次谐波产额对驱动激光椭圆率的依赖关系，并且与实验结果和数值求解的随时间变化的薛定谔方程的预测非常一致。
High-order-harmonic-generation yield is remarkably sensitive to driving laser ellipticity, which is interesting from a fundamental point of view as well as for applications. The most well-known example is the generation of isolated attosecond pulses via polarization gating. We develop an intuitive semiclassical model that makes use of the recently measured initial transverse momentum of tunneling ionization. The model is able to predict the dependence of the high-order-harmonic yield on driving laser ellipticity and is in good agreement with experimental results and predictions from a numerically solved time-dependent Schrödinger equation.