| 平顶多高斯光束通过ABCD光学系统的传输特性 |
| |
| 引用本文： | 饶连周,蒲继雄. 平顶多高斯光束通过ABCD光学系统的传输特性[J]. 激光杂志, 2007, 28(3): 22-24 |
| |
| 作者姓名： | 饶连周 蒲继雄 |
| |
| 作者单位： | 三明学院物理与机电工程系,福建省三明市,365004;华侨大学电子科学与技术系,福建省泉州市,362021;华侨大学电子科学与技术系,福建省泉州市,362021 |
| |
| 摘 要： | 利用广义惠更斯一菲涅耳衍射积分公式,研究了平顶多高斯光束通过ABCD光学系统的传输特性,推导出光强分布的解析式.以透镜系统为例,给出了平顶多高斯光束聚焦场轴上的和焦面处的光强分布表达式,并对其光强分布进行数值计算及分析.研究结果表明,平顶多高斯光束的聚焦特性与阶数N以及透镜系统的菲涅耳数Nw等有关,随着平顶多高斯光束的阶数N的增大或透镜系统的菲涅耳数Nw增大,轴上和焦面上的光强迅速增大、聚焦光斑减小、焦移量迅速减小.
|
| 关 键 词： | 高斯光束 ABCD光学系统 聚焦特性 光强分布 |
| 文章编号： | 0253-2743（2007）03-0022-03 |
| 修稿时间： | 2006-11-15 |
Propagating property of flat-topped multi - Gaussian laser heams passing through ABCD optical systems |
| |
| RAO Lian-zhou,PU Ji-xiong. Propagating property of flat-topped multi - Gaussian laser heams passing through ABCD optical systems[J]. Laser Journal, 2007, 28(3): 22-24 |
| |
| Authors: | RAO Lian-zhou PU Ji-xiong |
| |
| Abstract: | The Propagating property of flat topped multi-Ganssian laser beams (FMGB) passing through ABCD optical systems is discussed on the basis of generalized Huygens Fresnel Diffraction integral formula.An expression for light intensity of FMGB has been derived.The lens system is taken as an example,the expressions for axial and focal plane light intensity of FMGB has been educed and numerical calculation and analysis for light intensity distribution are carried out. The numerical calculation shows,The FMGB have affiliations with the rank.Nand Fresnel number Nw of the lens system etc.It is shown that when the rank N of FMGB become large or Frasnel number Nw of the lens system become large,the axial and focal plane light intensity quick become large and the focused beam ra- dius become small,the focal point displacement quick become small. |
| |
| Keywords: | Gaussian beams ABCD optical systems focusing property light intensity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
