| 一类新平顶光束的束传播因子 |
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| 引用本文： | 唐慧琴,朱开成,朱正和,王学文.一类新平顶光束的束传播因子[J].强激光与粒子束,2002,14(3):357-360. |
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| 作者姓名： | 唐慧琴 朱开成 朱正和 王学文 |
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| 作者单位： | 1. 中南大学 应用物理与热能工程系，湖南 长沙，410083;2. 四川大学工团原子与分子应用物理研究所，四川 成都，610065;3. 湘潭师范学院 物理系，湖南 湘潭，411201 |
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| 基金项目： | 中南大学科研基金资助项目，湖南省教委科研基金资助项目 |
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| 摘 要： | 基于迭加原理，引入了利用双曲余弦-高斯光束的相干迭加而得的新光束，结果表明这类迭加光场的场强分布在适当参数条件下可具有平顶结构，并且分析了这类迭加所得的平顶光束的束传播因子与束参数的关系。
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| 关 键 词： | 双曲类高斯光束 束传播因子 平顶光束 |
| 文章编号： | 1001-4322(2002)03-0357-04 |
| 收稿时间： | 2001/5/29 |
| 修稿时间： | 2001年5月29日 |
Propagation factor of a new kind of flattened-top beam |
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| tang hui-qin,zhu kai-cheng,zzhu zheng-he,wang xue-wen.Propagation factor of a new kind of flattened-top beam[J].High Power Laser and Particle Beams,2002,14(3):357-360. |
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| Authors: | tang hui-qin zhu kai-cheng zzhu zheng-he wang xue-wen |
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| Institution: | 1. Department of Applied Physics and Heat Engineering, Central South University, Changsha 410083, China2. Institute for applied atomic and molecular Physics, Sichuan University, Chengdu 610065, China;3. Department of Physics, Xiangtan Normal University, Xiangtan 411201, China |
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| Abstract: | A new kind of light beam generated from superposing cosh-Gaussian beams is proposed. Two types of superposing light field with different weight coefficients are disscussed in detail. It was found that the beam profiles have a nearly flat top but its sides reduce continuously for suitable parameters. The beam may also be a solution of the paraxial wave equation for propagation in complex optical systems because the equation is linear. The propagation factor of cosh-Gaussian beams is calculated in this article. |
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| Keywords: | cosh-Gaussian beam propagation factor flattened light beam |
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