搭建了涡旋光在多层介质膜中的传输模型, 分析了涡旋光垂直入射下膜系内的温升分布。结果表明, 膜系内的温升分布与涡旋光入射面密切相关。当涡旋光在初始面入射时, 膜系的温升区域集中在入射中心。当涡旋光在空间中传输一定距离后再入射膜系时, 膜系温升区域向入射中心的两侧发散, 且最大温升大于初始面入射时的温升。当传输距离足够远时, 膜系最大温升随传输距离的增加而减小。另外, 在一定传输距离内, 膜系最大温升随拓扑荷数的增大而增加。传输距离足够远时, 最大温升随拓扑荷数的增大而减小。

The transmission model of vortex beam within multilayer dielectric coating has been established, and the temperature property of multilayer dielectric coating irradiated by optical vortex has been discussed. The results show that the temperature property is closely related to the incident plane of vortex beam. When irradiated by the initial plane of optical vortex, the region of temperature rise of coating was focused on the incident center. When irradiated by the optical vortex with a certain transmission distance in space, the temperature rise regions of coating spread on both sides of the incident center. When the transmission distance is far enough, the maximum temperature decreases with the increase of transmission distance. Moreover, the maximum temperature increases as the topological charges increase within a certain transmission distance. Nevertheless, the maximum temperature decreases as the topological charges increase when the transmission distance is far enough.