Determination of the absolute carrier-envelope phase by angle-resolved photoelectron spectra of Ar by intense circularly polarized few-cycle pulses
Determination of the absolute carrier-envelope phase by angle-resolved photoelectron spectra of Ar by intense circularly polarized few-cycle pulses
复制标题
通过强圆偏振少周期脉冲的 Ar 角分辨光电子能谱测定绝对载流子包络相位
DOI：
10.1103/physreva.95.053410
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发表时间：
2017
影响因子：
2.9
通讯作者：
Gerhard G. Paulus
中科院分区：
文献类型：
--
作者：
S. Fukahori;T. Ando;S. Miura;R. Kanya;K. Yamanouchi;T. Rathje;Gerhard G. Paulus
利用强圆偏振近红外几周期激光脉冲记录了Ar的角分辨光电子谱，并通过经典轨迹Monte Carlo模拟研究了电离对Ar原子的耗尽效应和库仑势的影响.在光电子能谱实验与理论比较的基础上，提出了一种估算周期数激光脉冲与原子和分子相互作用的绝对载波包络相位（CEP）的方法。它被证实，绝对CEP可以安全地估计没有任何数值计算，一旦角分布的光电子的产额具有大于30 eV的动能与峰值激光强度之间的范围内测量。
The angle-resolved photoelectron spectra of Ar are recorded using intense circularly polarized near-infrared few-cycle laser pulses, and the effect of the depletion of Ar atoms by the ionization and the effect of the Coulombic potential are examined by the classical trajectory Monte Carlo simulations. On the basis of the comparison between the experimental and theoretical photoelectron spectra, a procedure for estimating the absolute carrier-envelope phase (CEP) of the few-cycle laser pulses interacting with atoms and molecules is proposed. It is confirmed that the absolute CEP can securely be estimated without any numerical calculations once the angular distribution of the yield of photoelectrons having the kinetic energy larger than 30 eV is measured with the peak laser intensity in the range betweenand.