短脉冲laser多光子电离中的光电子圆二色性：III。小茴香酮在不同体系中的光电离
Photoelectron circular dichroism in the multiphoton ionization by short laser pulses: III. Photoionization of fenchone in different regimes
摘要：
用含时单中心方法研究了小茴香酮多光子电离不同区域的光电子圆二色性。特别地，我们研究了单色多光子或强场电离的圆偏振400和814 nm的光脉冲或1850 nm的红外脉冲的手征响应。此外，还考虑了413-1240 nm相干圆偏振短脉冲的宽带电离。最后，双色电离的锁相400和800 nm的脉冲，这是线偏振在相互正交的方向，进行了研究。计算结果与已有的实验数据符合较好。对于用宽带和双色脉冲电离茴香酮，目前的理论研究预测了大量的多光子PECVD。
英文摘要：
Photoelectron circular dichroism (PECD) in different regimes of multiphoton ionization of fenchone is studied theoretically using the time-dependent single center method. In particular, we investigate the chiral response to the one-color multiphoton or strong-field ionization by circularly polarized 400 and 814 nm optical laser pulses or 1850 nm infrared pulse. In addition, the broadband ionization by short coherent circularly polarized 413-1240 nm spanning pulse is considered. Finally, the two-color ionization by the phase-locked 400 and 800 nm pulses, which are linearly polarized in mutually-orthogonal directions, is investigated. The present computational results on the one-color multiphoton ionization of fenchone are in agreement with the available experimental data. For the ionization of fenchone by broadband and bichromatic pulses, the present theoretical study predicts substantial multiphoton PECDs.
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