论文标题
螺旋体二分法的电磁理论在磁性结构反射中
Electromagnetic theory of Helicoidal Dichroism in reflection from magnetic structures
论文作者
论文摘要
我们通过带有通用对称性的平面磁性结构介绍了带有轨道角动量（OAM）反射的经典电磁理论框架。根据磁化对称性，我们发现由于磁相互作用和不对称的远场强度曲线而导致反射光束的OAM含量发生了变化。这导致了三种类型的磁性旋转二色性（MHD），在切换传入光束的oAM时观察到，磁化标志或两者兼而有之。在足够的对称性的情况下，我们建立了分析公式，将实验可访问的MHD信号连接到$ 10 \％$与磁光kerr效应（moke）常数。磁性涡旋特别具有启发性和有希望的目标，我们为此探讨了我们在联合出版物xxx xxx xxxxx中的理论的含义。
We present the classical electromagnetic theory framework of reflection of a light beam carrying Orbital Angular Momentum (OAM) by an in-plane magnetic structure with generic symmetry. Depending on the magnetization symmetry, we find a change in the OAM content of the reflected beam due to magneto-optic interaction and an asymmetric far-field intensity profile. This leads to three types of Magnetic Helicoidal Dichroism (MHD), observed when switching the OAM of the incoming beam, the magnetization sign, or both. In cases of sufficient symmetries, we establish analytical formulas which link an experimentally accessible MHD signal up to $10\%$ to the Magneto-Optical Kerr Effect (MOKE) constants. Magnetic vortices are particularly enlightening and promising targets, for which we explore the implications of our theory in the joint publication XX XXX XXXXXX.
