Photonics Institute, Technische Universität Wien, 1040 Vienna, Austria.
Wigner Research Centre for Physics, Institute for Solid State Physics and Optics, 1121 Budapest, Hungary.
Phys Chem Chem Phys. 2023 Feb 8;25(6):4656-4666. doi: 10.1039/d2cp03077b.
We report on a combined experimental and numerical study of photoelectron circular dichroism (PECD) induced by intense few-cycle laser pulses, using methyloxirane as the molecular example. Our experiments reveal a remarkably pronounced sensitivity of the PECD strength of double-ionization on the carrier-envelope phase (CEP) of the laser pulses. By comparison to the simulations, which reproduce the measured CEP-dependence for specific orientations of the molecules in the lab frame, we attribute the origin of the observed CEP-dependence of PECD to the CEP-induced modulation of ionization from different areas of the wave functions of three dominant orbitals.
我们报告了一个关于利用强少周期激光脉冲诱导光电子圆二色性（PECD）的实验和数值研究，以甲基环氧乙烷作为分子实例。我们的实验揭示了激光脉冲载波包络相位（CEP）对双电离 PECD 强度的显著影响。通过与模拟结果的比较，模拟结果再现了实验室框架中分子特定取向的测量 CEP 依赖性，我们将观察到的 PECD 的 CEP 依赖性归因于 CEP 诱导的三个主要轨道的波函数不同区域的电离的调制。
