物理学报2011，Vol.60Issue(9)：326-329,4.
非傍轴高斯光束传输特性的研究
Propagation characteristics of nonparaxial Gaussian beams
摘要
Abstract
Based on the rigorous definition of light intensity of nonparaxial vectorial beams in the transverse plane, beam width, far-field divergence angles and M2 factors are defined by the power in the bucket. Taking nonparaxial vectorial Gaussian beam as an example, the detailed theoretical analyses and numerical calculations about the propagation characteristics are performed, and the results are compared with those from the nonparaxial scalar theory. Showing that when the half width of light source ω0 is less than λ, there are obvious differences between the propagation characteristics described by the nonparaxial scalar and the vectorial theory, and their propagation characteristics tend to be consistent with ω0 increasing, change to that obtained in the paraxial scalar approximation gradually.关键词
非傍轴高斯光束/桶中功率/束宽/发散角Key words
nonparaxial Gaussian beam/power in the bucket/beam width/divergence angle分类
数理科学引用本文复制引用
邓小玖,牛国鉴,刘彩霞,肖苏..非傍轴高斯光束传输特性的研究[J].物理学报,2011,60(9):326-329,4.基金项目
国家自然科学基金（批准号：50776084）资助的课题 （）
