摘要
分析几何光学理论、干涉理论和衍射理论对局域空心光束传输特性的描述.对由轴棱锥-透镜系统产生的局域空心光束的描述进行对比分析,并给出相关的实验.几何光学属于近轴近似下的光学,与实际情况有所差异.干涉理论的分析方法比几何光学方法精确,能够数值计算出聚焦透镜置于最大准直距离之外及在聚焦透镜焦平面以后的光束行为,得到与几何光学分析所得出的,当z0<f<zmax将产生中空光束的不同结论.衍射理论分析法清晰展示局域空心光束及无衍射光束重建的特性.
The propagation properties of the bottle beam were described based on geometrical optical theory, interferential theory and diffraction theory. The description methods of the bottle beam generated from axicon-lcns system were compared and analyzed, and the relative experimental results were given. Geometrical optics is the near-axis approxination optics and exist the errors. Interferential theory describes the bottle beam more rigorous from other aspect. The beam propagation behavior behind the focal plane of the focal lens can be numerical simulated, and the different conclusion to geometrical optics was obtained which showed that the bottle beam existence when condition z0〈f〈zmax was satisfied. Diffraction theory clearly reveals the properties of the bottle beam and the reconstruction of non-diffraction beam.
出处
《华侨大学学报（自然科学版）》
CAS
北大核心
2008年第2期161-166,共6页
Journal of Huaqiao University(Natural Science)
基金
国家自然科学基金资助项目(60477041)
福建省自然科学基金资助项目(A0710011
A0410017)
关键词
局域空心光束
传输特性
轴棱锥
几何光学
干涉理论
衍射理论
bottle beam
propagation property
axicon
geometrical optical theory
interferential theory
diffraction theory
