光学学报, 2017, 37 (6): 0626004, 网络出版: 2017-06-08
空间弯曲光束的折射特性
Refraction Characteristics of Spatial Bending Beams
物理光学 表面等离极化激元 空间弯曲光束 有限元法 physical optics surface plasmon polaritons spatial bending beams finite element method
摘要
空间弯曲光束在光学捕获和光纤传感等领域具有重要的应用价值, 在这些应用中, 空间的介质环境起着重要作用。根据空间弯曲光束的激发原理提出了一种理论方法, 应用折射定律反演空间弯曲光束的每一条几何射线, 以描述空间弯曲光束在空气-介质界面的折射现象, 同时以空间弯曲光束为例进行了有限元法模拟。所阐明的空间弯曲光束在空气-介质界面的折射机制为解释任意通过相位反演激发的空间弯曲光束的折射机制提供了一定的参考。
Abstract
Spatial bending beams have important applications in optical trapping, fiber sensing, and so on. In these applications, spatial media environment plays an important role. A theoretical method is proposed based on the principle of spatial bending beam excitation. Snell′s law is introduced to invert every geometrical ray of spatial bending beam and describe the refraction of spatial bending beam at air-dielectric interface. Besides, the spatial bending beam is as an example for carrying out simulation based on the finite element method. The refraction mechanism of spatial bending beam at air-dielectric interface may serve as a reference for elucidating the refraction mechanism of arbitrary spatial bending beam motivated by phase inversion.
徐永征, 李辉, 王莉, 张中月. 空间弯曲光束的折射特性[J]. 光学学报, 2017, 37(6): 0626004. Xu Yongzheng, Li Hui, Wang Li, Zhang Zhongyue. Refraction Characteristics of Spatial Bending Beams[J]. Acta Optica Sinica, 2017, 37(6): 0626004.