| 径各平方贝赛尔函数调制高斯光束的焦移 |
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| 引用本文： | 柯尊平,吕百达,等.径各平方贝赛尔函数调制高斯光束的焦移[J].光电工程,2001,28(4):1-4. |
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| 作者姓名： | 柯尊平 吕百达 |
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| 作者单位： | [1]西南交通大学应用物理系，四川成都610031 [2]四川大学激光物理与激光化学研究所，四川成都610064 |
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| 摘 要： | 给出变量为径向平方的贝塞尔函数调制的高斯光束（QBG光束）通过ABCD聚集光学系统的轴上光强分布公式，对QBG光束通过薄秀镜聚集系统的轴上光强分布及焦移进行了研究，得到相对焦移满足的三次方程和解析解，给出详细的数值计算结果并进行了分析讨论。
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| 关 键 词： | 高斯光束 贝塞尔函数 薄透镜 相对焦移 |
| 文章编号： | 1003-501(2001)04-0001-04 |
| 修稿时间： | 2000年10月31 |
The Focal Shift for Bessel-Modulated Gaussian Beam with Quadratic Radial Dependence |
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| KE Zun-ping,WANG Xi-qing,L Bai-da.The Focal Shift for Bessel-Modulated Gaussian Beam with Quadratic Radial Dependence[J].Opto-Electronic Engineering,2001,28(4):1-4. |
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| Authors: | KE Zun-ping WANG Xi-qing L Bai-da |
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| Affiliation: | KE Zun-ping1,WANG Xi-qing1,L Bai-da2 |
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| Abstract: | The expression for axial light intensity distribution of the Bessel-modulated Gaussian beam with Quadratic radial dependence (QBG beam) passing through ABCD focusing system is given in the paper. A study on axial light intensity distribution and focal shift of Bessel-modulated Gaussian beam with quadratic radial dependence passing through the thin lens focusing system is carried out. The cubic equation and analytic solutions fulfilled by the relative focal shift are obtained. The detailed numerical calculation results are given, analysis and discussion are carried out. |
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| Keywords: | Gaussian beam Bessel function Thin lens Relative focal shift |
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