| 像散对聚焦正弦-高斯光束参数的影响 |
| |
| 引用本文： | 牟国强,王喜庆.像散对聚焦正弦-高斯光束参数的影响[J].四川激光,2011(1):21-23. |
| |
| 作者姓名： | 牟国强 王喜庆 |
| |
| 作者单位： | 西南交通大学物理科学与技术学院; |
| |
| 摘 要： | 应用二阶矩法推导出了正弦-高斯光束通过像散透镜后束宽的解析表达式.通过数值计算对正弦-高斯光束通过像散透镜后的光束参数,例如束宽和远场发散角的相对误差进行了研究.结果表明:像散使x方向与y方向的束宽一般不相等,束宽的相对误差在传输距离z上存在零点,但x方向与y方向零点的位值不相同;几何焦面上x方向与y方向束宽的相对误差...
|
| 关 键 词： | 像散 正弦-高斯光束 光束参数 |
Influence of astigmatism on the beam parameters of focusing sin-Gaussian beams |
| |
| MU Guo - qiang,WANG Xi - qing.Influence of astigmatism on the beam parameters of focusing sin-Gaussian beams[J].Laser Journal,2011(1):21-23. |
| |
| Authors: | MU Guo - qiang WANG Xi - qing |
| |
| Affiliation: | MU Guo - qiang,WANG Xi - qing (College of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610031,China) |
| |
| Abstract: | The analytical formula for the beam width of sin-Gaussian beams passing through an astigmatic lens is derived by using the second-order moment method.By numerical calculation the relative errors of the beam parameters,such as the beam width and far - field divergence angle of sin - Gaussian beams after passing through an astigmatic lens are studied.It is shown that the beam widths in the x and y directions are not equal due tothe astigmatism,the relative errors of the beam widths equal to zero at some point... |
| |
| Keywords: | astigmatism sin - Gaussian beam beam parameters |
| 本文献已被 CNKI 维普 等数据库收录！ |
