论文标题
双伏原子系统中结构化极化的转移和演变
Transfer and evolution of structured polarization in a double-V atomic system
论文作者
论文摘要
我们从数值上研究了光学信息从矢量 - 涡流控制束到由原子蒸气介导的非结构化探针梁的传递。这些梁的左右圆形组件驱动双$ V $系统的原子过渡，原子充当空间变化的圆形双向介质。为了建模光场的传播，我们发现，对于短距离，将矢量光结构从控制场传递到探针。但是，对于较大的传播长度，衍射会导致探针场的圆形成分在空间上分离。我们为冷rubidium原子的D1线建模该系统。我们的研究是研究四波混合中内部和外部原子自由度的耦合动力学的第一步。
We numerically investigate the transfer of optical information from a vector-vortex control beam to an unstructured probe beam, as mediated by an atomic vapour. The right and left circular components of these beams drive the atomic transitions of a double-$V$ system, with the atoms acting as a spatially varying circular birefringent medium. Modelling the propagation of the light fields, we find that, for short distances, the vectorial light structure is transferred from the control field to the probe. However, for larger propagation lengths, diffraction causes the circular components of the probe field to spatially separate. We model this system for the D1 line of cold rubidium atoms. Our investigation is a first step to investigating the coupled dynamics of internal and external degrees of freedom of atoms in four wave mixing.
