Generalization and propagation of spiraling Bessel beams with a helical axicon  

作　　者：Sun Qiong-Ge Zhou Ke-Ya Fang Guang-Yu Liu Zheng-Jun Liu Shu-Tian 孙琼阁;周可雅;方光宇;刘正君;刘树田(Department of physics,Harbin Institute of Technology,Harbin 150001,China;Department of Automation Measurement and Control Engineering,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]Department of physics,Harbin Institute of Technology,Harbin 150001,China [2]Department of Automation Measurement and Control Engineering,Harbin Institute of Technology,Harbin 150001,China

出　　处：《Chinese Physics B》2012年第1期234-243,共10页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China(Grant No.2011CB301801);the National Natural Science Foundation of China(Grant Nos.10974039,11047153,10904027,61008039,and 11104049);the Doctoral Program of Higher Education of China(Grant No.20102302120009);the Fundamental Research Funds for the Central Universities of China(Grant No.2009038)

摘　　要：A generalized type of spiral Bessel beam has been demonstrated by using a spatially displaced helical axicon （HA）. The topological charge of the spiraling Bessel beams is determined by the order of the input Laguerre Gaussian （LG） beam and the topological charge of the HA. The obtained spiraling Bessel beams have an LG type of modulation along their propagation direction and exhibit annihilation-reconstruction properties. Theoretical analysis is presented, including that of the stability, propagation distance, topological charge, and spiraling dynamic characteristics. The mathematical and numerical results show that the propagation distance and helical revolution of the spiraling Bessel beams can be controlled through choosing appropriate radius of the HA.A generalized type of spiral Bessel beam has been demonstrated by using a spatially displaced helical axicon （HA）. The topological charge of the spiraling Bessel beams is determined by the order of the input Laguerre Gaussian （LG） beam and the topological charge of the HA. The obtained spiraling Bessel beams have an LG type of modulation along their propagation direction and exhibit annihilation-reconstruction properties. Theoretical analysis is presented, including that of the stability, propagation distance, topological charge, and spiraling dynamic characteristics. The mathematical and numerical results show that the propagation distance and helical revolution of the spiraling Bessel beams can be controlled through choosing appropriate radius of the HA.

关 键 词：Bessel beam helical axicon beam propagation spiral beam 

分 类 号：O436[机械工程—光学工程]