| 多棱锥镜产生多光束干涉场的理论和实验研究 |
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| 引用本文： | 雷铭,姚保利.多棱锥镜产生多光束干涉场的理论和实验研究[J].光学学报,2006,26(5):57-762. |
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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与光子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与光子技术国家重点实验室,西安,710068 |
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| 摘 要： | 提出了一种使用多棱锥镜和多棱台镜产生多束相干光形成二维和三维光学格子的方法。理论分析和数值模拟了多束轴对称平面波干涉产生的二维及三维点阵结构的特性,得到了光场分布随光束数增加的关系,发现随着干涉光数目的增加,干涉场会复杂变化,当棱锥棱数足够多近似于一个圆锥时,干涉场会变为同心圆结构的贝塞尔光束的场分布。实验上使用多棱锥和多棱台镜进行了多光束干涉实验,得到了多束轴对称平面波干涉形成的光学格子,将数值模拟与实验结果进行了比较,二者完全吻合。
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| 关 键 词： | 光电子学 光子晶体 干涉 光学格子 棱锥镜 光镊 |
| 文章编号： | 0253-2239（2006）05-0757-6 |
| 收稿时间： | 2005-06-17 |
| 修稿时间： | 2005-10-20 |
Theoretical and Experimental Studies on Multi-Beam Interference by Using Pyramid Lens |
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| Lei Ming,Yao Baoli.Theoretical and Experimental Studies on Multi-Beam Interference by Using Pyramid Lens[J].Acta Optica Sinica,2006,26(5):57-762. |
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| Authors: | Lei Ming Yao Baoli |
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| Abstract: | A method of producing 2D and 3D optical lattices with multi-beam interference by using the pyramid lens and the top-chopped pyramid lens is proposed.The structures of 2D and 3D optical lattices formed by interference of multiple z-axis symmetrically distributed plane waves are numerically simulated and analyzed.The relation between the optical-field distribution and the light beam number is conducted,the interference field tends complicate with the rise of beam numbers,when the arrises of the pyramid are enough and the pyramid can be regarding as an axicon,the interference field becomes a Bassel distribution with a concentric circles structure.In the experiment,the multi-arris pyramid lens and the multi-arris top-chopped pyramid lens are used to generate optical lattices.The experimental results are quite consistent with the simulation results. |
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| Keywords: | optoelectronics photonic crystal interference optical lattice pyramid lens optical tweezers |
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