| 用三光束干涉模型解释锥镜产生类贝塞尔光束 |
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| 引用本文： | 雷铭,姚保利.用三光束干涉模型解释锥镜产生类贝塞尔光束[J].光子学报,2006,35(1):146-148. |
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| 作者姓名： | 雷铭 姚保利 |
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| 作者单位： | 1. 中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,西安,710068;中国科学院研究生院,北京,100039
2. 中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,西安,710068 |
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| 摘 要： | 对高斯光束通过锥镜产生类似贝塞尔光束的环形光束进行了理论分析及实验研究.数值模拟过程中，基于相干光干涉理论，考虑到实际情况中锥尖不尖带来的影响，建立了三光束干涉的数学模型.模拟得到的光场分布与实验结果及基于菲涅尔衍射积分理论或空间光谱理论得到的零阶贝塞尔光束很接近.这种光场具有非衍射特性，可应用于新型光镊研究.
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| 关 键 词： | 锥镜 贝塞尔光束 光镊 |
| 收稿时间： | 2004-11-08 |
| 修稿时间： | 2004年11月8日 |
The explanation of Bessel-like beam from axicon with three-beam interference model |
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| Lei Ming,Yao Baoli.The explanation of Bessel-like beam from axicon with three-beam interference model[J].Acta Photonica Sinica,2006,35(1):146-148. |
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| Authors: | Lei Ming Yao Baoli |
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| Affiliation: | 1 State Key Laboratory of Transient Optics Technology, Xi′an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences, Xi′an 710068;2 Graduate School of the Chinese Academy of Sciences, Beijing 100039 |
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| Abstract: | A model of three-beam interference has been set up to explain the observed beam patterns which are generated by Gaussian beam passing through an axicon. The mathematical simulation is based on interferential theory, and the effect of the vertex of the axicon.is also considered. The derived equation for describing the transverse intensity distribution gives good approximation to the experimental result as well as the zero-order Bessel function. This beam is characteristic of non-diffraction and can be used to study the newly-type optical tweezers. |
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| Keywords: | Axicon Bessel beam Optical tweezers |
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