1) Fresnel number of whole-beam
整束菲涅耳数
2) Fresnel number
菲涅耳数
1.
Equivalent Fresnel number for regular triangle aperture;
正三边形光阑的等效菲涅耳数
2.
Based on the theory of scalar diffraction and the mathematical analysis,the paper gives the criterion(the value of the Fresnel number,F=0.
基于标量衍射理论,通过数学分析,得到了从菲涅尔衍射过渡到夫琅和费衍射的判别条件(即菲涅耳数的值F=0。
3.
The number of spectral switch increases with increasing Fresnel number and truncation parameter, but .
数值计算结果表明,光谱开关主要与截断参量、光束菲涅耳数以及光谱相干度有关。
3) Fresnel number of Gaussian beams
高斯光束菲涅耳数
5) generalized Fresnel number
广义菲涅耳数
1.
It is found that both FMGB and FGB having the same M 2 factor exhibit a similar transversal intensity distribution at a position of the equal generalized Fresnel number,whenever their waist width is equal or not.
研究表明 ,具有相同M2 因子的两个平顶多高斯光束和平顶高斯光束 ,无论其束腰宽度是否相等 ,在广义菲涅耳数相等处都具有相似的光强分布。
6) effective Fresnel number
有效菲涅耳数
补充资料：整束
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