Compared with other methods, the Fourier-Bessel method is of the advantages of fast calculation, simple math format, easy understanding and application.
与其他方法相比，傅里叶-贝塞尔方法具有计算速度快，数学形式简练，易于理解和应用的优点。
The main method of evaluation is Bessel formula.
重复性评定方法，主要是贝塞尔公式。
Our calculations show that the Bessel-Gauss beam can be produced in the focused plane of the ring apertured Gaussian beam, this method is efficient and simple.
本文通过计算指出环状分布的光束经透镜后可在焦平面产生适用于激光打孔的贝塞尔·高斯光束，这是一种高效、简单实用的方法。
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