摘要
在考虑像差的情况下，得到了与菲涅耳数聚焦激光光学系统的衍射积分公式，并推出了轴上相对光强分布的普遍近似公式，在此基础上得到了初级球差系统的轴上相对光强分布公式，并在不考虑像差因素和截取效应时，对得到的公式进行了简化，所得结果与以前的结论吻合得较好。
The diffraction integral of small Fresnel number focusing laser system is obtained in the presence of aberration.The general approximate formula for the on-axis relative density distribution is also derived,as well as the on-axis relative density distribution formula for a spherical aberration laser system.In the conditions of aberration-free and non-truncation,the formulae can be simplified which fit wei] with the results obtained by former researchers.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1999年第2期178-180,共3页
Journal of University of Electronic Science and Technology of China
关键词
高斯光束
激光光学系统
菲涅耳数
光强分布
Gaussian beam
laser system
Fresnel number
on-axis relative density
