两种处理焦移方法的比较研究

A comparative study of two different approaches to focal shifts

对焦移的处理有两种不同方法 ,即Li Wolf法和Greene Hall法。以复宗量拉盖尔 高斯光束为典型例 ,对处理焦移的这两种方法作了详细的比较研究 ,并对数值计算结果作了分析。所得结论对某些实际应用是有意义的。

There are two different approaches to deal with focal shifts,i.e.,Li Wolf’s and Greene Hall’s approaches.In this paper focal shifts in elegant (complex argument) Laguerre Gaussian (ELG) beams are taken as a typical example,a detailed comparative study of the two approaches is made and numerical calculations results are illustrated.The conclusion made in this paper is useful for some practical applications.