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arXiv 2204.09406physics.atom-ph
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原子双谐波$ω+ 3ω$电离总速率中的极化效应

Polarization effects in the total rate of biharmonic $ω+ 3ω$ ionization of atoms

J. Hofbrucker, S. Ramakrishna, A. V. Volotka, S. Fritzsche

摘要:

在独立粒子近似和三阶微扰理论下,研究了双谐波($ω+ 3ω$)电离的总电离率。特别注意的是如何双谐波光场的偏振影响的总速率。分析了线偏振光束和圆偏振光束以及共转和反转椭圆偏振光束的双谐波电离率的比值,以及它们如何依赖于$ω$和$3ω$光束之间的光子频率或相位等光束参数。我们表明,双谐波电离振幅的干扰决定了一个特定的光束偏振超过另一个的优势,它可以通过适当的选择光束参数进行控制。此外,我们证明了我们的研究结果的电离氖$L$壳电子。

英文摘要:

The total ionization rate of biharmonic ($ω+ 3ω$) ionization is studied within the independent particle approximation and the third order perturbation theory. Particular attention is paid to how the polarization of the biharmonic light field affects the total rate. The ratios of the biharmonic ionization rates for linearly and circularly polarized beams as well as for corotating and counterrotating elliptically polarized beams are analyzed, and how they depend on the beam parameters, such as photon frequency or phase between $ω$ and $3ω$ light beams. We show that the interference of the biharmonic ionization amplitudes determines the dominance of a particular beam polarization over another and that it can be controlled by an appropriate choice of beam parameters. Furthermore, we demonstrate our findings for the ionization of neon $L$ shell electrons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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