| 部分相干局域空心光束 |
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| 引用本文： | 饶连周,王宗篪,叶普,李青虹.部分相干局域空心光束[J].三明学院学报,2007,24(4):373-377. |
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| 作者姓名： | 饶连周 王宗篪 叶普 李青虹 |
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| 作者单位： | 三明学院,物理与机电工程系,福建,三明,365004 |
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| 基金项目： | 福建省教育厅科研项目;三明学院校科研和教改项目 |
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| 摘 要： | 从理论和实验上研究了利用轴棱锥-透镜系统产生的部分相干局域空心光束,并讨论了入射部分相干光的空间相干度和轴棱锥与透镜之间距离对部分相干空心光束的影响。研究结果表明,入射部分相干光的空间相干度越大,产生的部分相干局域空心光束的暗中空区域越小,而轴棱锥与透镜之间距离越小,部分相干局域空心光束的暗中空区域越大。实验表明,改变入射部分相干光的空间相干度和轴棱锥与透镜间的距离,可以有效地改变部分相干局域空心光束的暗中空区域,以此来实现部分相干局域空心光束在原子囚禁和原子导引等方面的应用。
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| 关 键 词： | 部分相干光 局域空心光束 轴棱锥 透镜 |
| 文章编号： | 1673-4343（2007）04-0373-05 |
| 收稿时间： | 2007-09-22 |
| 修稿时间： | 2007年9月22日 |
Partially Coherent Bottle Beams |
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| RAO Lian-zhou,WANG Zong-chi,YE Pu,LI Qing-hong.Partially Coherent Bottle Beams[J].Journal of Sanming University,2007,24(4):373-377. |
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| Authors: | RAO Lian-zhou WANG Zong-chi YE Pu LI Qing-hong |
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| Abstract: | The generation of the partially coherent bottle beam is investigated. It is shown that the partially coherent bottle beams can be achieved by focusing the partially coherent light with an axicon-lens system. The influence of the spatial coherence of the incident partially coherent light as well as the distance between the focusing lens and the axicon on the size of the bottle beams is investigated. We fred that the larger the spatial coherence is, the larger is the size of the resultant bottle beams and the increment of the distance between the focusing lens and the axicon results in the decrease of the size of the bottle beams. This provides a facile approach for generating adjustable partially coherent bottle beams. This kind of partially coherent bottle beams may have applications in atom optics, such as in atom trapping and atom guiding etc. |
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| Keywords: | Partially coherent light bottle beams axicon lens |
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