Analytical expressions for diffraction-free beams through an opaque disk

被引:3
|
作者
Huang, Qiulin [1 ]
Coetmellec, Sebastien [2 ]
Duval, Fabrice [3 ]
Louis, Anne [3 ]
Leblond, Herve [4 ]
Brunel, Marc [2 ]
机构
[1] Xidian Univ, Sch Elect Engn, Xian 710071, Peoples R China
[2] CNRS UMR 6614 CORIA, Dept Opt, F-76801 St Etienne, France
[3] ESIGELEC, IRSEEM, F-76801 St Etienne, France
[4] Univ Angers, EA4464, LoA, F-49045 Angers 01, France
关键词
diffraction; Bessel beams; diffraction-free beams; NONDIFFRACTING BEAMS; GENERATION; PROPAGATION;
D O I
10.2971/jeos.2011.11031
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We establish analytical expressions that demonstrate that the beam produced after diffraction of a gaussian beam by an opaque disk and collimation by a lens can be approached by a diffraction-free J(0) Bessel function. We further demonstrate that a similar analytical expression can be established in the case of femtosecond incident pulses. [DOI: 10.2971/jeos.2011.11031]
引用
收藏
页数:7
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