作为二向色性和对映敏感测量前驱方法的三维光电子动量谱中的对称性
Symmetries in 3D photoelectron momentum spectroscopy as precursory methods for dichroic and enantiosensitive measurements
AI总结：
本研究通过对比相反手性超快椭圆场电离原子靶的三维光电子角分布与模拟，发现并利用二向色性对称性校正了取向系统误差，该方法可推广到分子靶，为对映敏感信息的实验测量奠定了基础。
摘要：
我们测量了由相反手性的超快椭圆场电离的原子靶的三维光电子角分布（PADs）。将这些PADs相互比较并与数值模拟对比，发现了其取向中一种难以避免的系统误差，随后通过施加二者必然遵循的二向色性对称性对该误差进行了校正。我们表明这种校正可直接应用于相同场中的分子靶。这为测量尚未通过实验获取的对映敏感信息铺平了道路。
英文摘要：
3D photoelectron angular distributions (PADs) are measured from an atomic target ionized by ultrafast, elliptical fields of opposite handedness. Comparing these PADs to one another and to numeric simulations, a difficult to avoid systematic error in their orientation is identified and subsequently corrected by imposing the dichroic symmetry by which they are necessarily related. We show that this correction can be directly applied to molecular targets in the same fields. This paves the way for measurement of enantiosensitive information which has yet to be accessed experimentally.
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