摘要
利用几何光学的光学追迹法,对梯度轴棱锥系统产生周期性局域空心光束(bottle beam)的演变过程进行描述。利用光学仿真软件的光照度分析功能,对光束传播中不同传播距离的截面光强分布进行了模拟。结果表明,通过改变两个轴棱锥底角大小,可以对周期性局域空心区域的长度进行控制。这种梯度轴棱锥系统可以很容易地产生尺寸非常小的周期性局域空心光束,这对于局域空心域光束在光镊、激光导管和光学扳手上的应用有着极其重要的意义。
The evolution of the periodic bottle beam generated by a gradient axicon system is described by a novel method based on the ray-tracing. The transverse intensity distributions of the Bottle beam in propagation are simulated by using the irradiance map function of optical simulation software. It is shown that the region of generating the periodic bottle beam can be controlled by changing the two cone angles of the axicon. The small-size bottle beam can be generated by using the gradient axicon system. This method has important application for the bottle beam in optical tweezers, laser catheters, and optical spanners.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2011年第8期1259-1262,共4页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目(60977068)
泉州市科技计划资助项目(2009G4)
