摘要
给出变量为径向平方的贝塞尔函数调制的高斯光束 ( QBG光束 )通过 ABCD聚焦光学系统的轴上光强分布公式 ,对 QBG光束通过薄透镜聚焦系统的轴上光强分布及焦移进行了研究 ,得到相对焦移满足的三次方程和解析解 ,给出详细的数值计算结果并进行了分析讨论。
The expression for axial light intensity distribution of the Bessel-modulated Gaussian beam with Quadratic radial dependence (QBG beam) passing through ABCD focusing system is given in the paper. A study on axial light intensity distribution and focal shift of Bessel-modulated Gaussian beam with quadratic radial dependence passing through the thin lens focusing system is carried out. The cubic equation and analytic solutions fulfilled by the relative focal shift are obtained. The detailed numerical calculation results are given, analysis and discussion are carried out.
出处
《光电工程》
CAS
CSCD
北大核心
2001年第4期1-4,共4页
Opto-Electronic Engineering
基金
四川省基金资助项目
关键词
高斯光束
贝塞尔函数
薄透镜
相对焦移
Gaussian beam
Bessel function
Thin lens
Relative focal shift
