Narrowing effect of focused polychromati
โ
Runwu Peng; Lijun Tang; Yajie Li; Shuangchun Wen; Dianyuan Fan
๐
Article
๐
2011
๐
Elsevier Science
๐
English
โ 259 KB
Starting from Huygens-Fresnel diffraction integral, the field representation of focused polychromatic laser beams is derived. Intensity distributions of the focused polychromatic laser are investigated with different Fresnel number and bandwidth at focal plane. It is found that the width of transver