School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China.
School of Physical Science and Technology, Southwest University, Chongqing 400715, China.
J Chem Phys. 2017 Nov 7;147(17):174302. doi: 10.1063/1.5001668.
Using the classical ensemble model, we systematically investigate strong-field nonsequential double ionization (NSDI) of Mg by intense elliptically polarized laser pulses with different wavelengths. Different from the noble atoms, NSDI occurs for Mg driven by elliptically and circularly polarized laser fields. Our results show that in elliptically and circularly polarized laser fields, the NSDI yield is sharply suppressed as the wavelength increases. Interestingly, the correlated behavior in the electron momentum spectra depends sensitively on the wavelengths. The corresponding electron dynamics is revealed by back tracing the classical trajectory.
我们使用经典系综模型，系统地研究了不同波长的强椭圆偏振激光脉冲对 Mg 的强场非序列双电离（NSDI）。与惰性原子不同，Mg 在椭圆和圆偏振激光场的驱动下会发生 NSDI。我们的结果表明，在椭圆和圆偏振激光场中，随着波长的增加，NSDI 的产率急剧下降。有趣的是，电子动量谱中的相关行为对波长非常敏感。通过回溯经典轨迹揭示了相应的电子动力学。
