摘要
理论上提出并实验制备了一种环形阵列艾里涡旋光束(CAAVB),该CAAVB由按环形阵列分布的多个艾里光形成,并具有自聚焦特性。通过增加艾里光阵列数,能够有效提高自聚焦光束的光场强度。仿真结果表明,在相同的条件下,加载光学涡旋能明显提高CAAVB的自聚焦特性。此外,通过调节环形艾里光阵列的半径来改变光束聚焦的位置,实现对焦距的非机械调节。
A kind of circular array Airy vortex beam(CAAVB) is theoretically proposed and experimentally generated,which consists of multiple Airy beams arranged in an annular array and has the self-focusing performance.By increasing the number of Airy beam arrays,the self-focusing intensity can be effectively increased.The simulation results show that under the same conditions,the self-focusing characteristics of a CAAVB can be greatly improved by loading an optical vortex.In addition,by adjusting the radius of the annular airy beam array,the focusing position of the beam can be controlled and the non-mechanical adjustment of focus distance can be realized.
作者
赖松陶
兰燕平
毛红行
钱义先
Lai Songtao;Lan Yanping;Mao Hongxing;Qian Yixian(College of Mathematics,Physics,and Information Engineering,Zhejiang Normal University,Jinhua,Zhejiang 321004,China;Key Laboratory of Researching Optical Information Detecting and Display Technology in Zhejiang Province,Jinhua,Zhejiang 321004,China;Guangxi Key Laboratory of Automatic Detecting Technology and Instruments,Guilin University of Electronic Technology,Guilin,Guangxi 541004,China)
出处
《中国激光》
EI
CAS
CSCD
北大核心
2019年第4期242-249,共8页
Chinese Journal of Lasers
基金
国家自然科学基金(61377014)
浙江省自然科学基金(LY17A040002)
关键词
物理光学
艾里涡旋光束
自聚焦光束
自加速光束
聚焦性能
光学涡旋
physical optics
Airy vortex beam
self-focused beam
self-accelerated beam
focusing performance
optical vortex
