论文标题
光电子二色性对称性的分类被光折断
Classification of the symmetry of photoelectron dichroism broken by light
论文作者
论文摘要
我们研究了极化光的方向如何影响角度分辨光发射光谱中看到的二分性别模式。为此，我们准备了一个样品，该样品由宏观上具有无限旋转和镜像对称性的高度取向的BI（111）微晶组成$ \ rm {c} _ {\ infty \ rm {v}} $对称在光和样品的固定配置下。光的方向印在图案中。因此，我们应用小组理论并将模式与所考虑的光的配置进行分类。我们通过讨论可以忽略极化的平面成分的情况来完成分类，当入射角为0 $^{\ circ} $或90 $^{\ circ} $时，偏振是椭圆化或线性，以及样品是晶体时。
We investigate how the direction of polarized light can affect the dichroism pattern seen in angle-resolved photoemission spectroscopy. To this end, we prepared a sample composed of highly-oriented Bi(111) micro-crystals that macroscopically has infinite rotational and mirror symmetry of the point group $\rm{C}_{\infty\rm{v}}$ and examined whether the dichroism pattern retains the $\rm{C}_{\infty\rm{v}}$ symmetry under the stationary configuration of the light and sample. The direction of the light was imprinted in the pattern. Thereby, we apply group theory and classify the pattern with the configuration of light taken into account. We complete the classification by discussing the cases when the out-of-plane component of the polarization can be neglected, when the incidence angle is either 0$^{\circ}$ or 90$^{\circ}$, when the polarization is either elliptic or linear, and also when the sample is a crystal.
