| 混合光环晶格的实验研究 |
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| 引用本文： | 缪庄,黄素娟,邵蔚,李迎春,王廷云.混合光环晶格的实验研究[J].光电子．激光,2015,26(9):1822-1827. |
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| 作者姓名： | 缪庄 黄素娟 邵蔚 李迎春 王廷云 |
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| 作者单位： | 上海大学 通信与信息工程学院,上海市特种光纤与光接入网省部共建重点实验室,上海 200072;上海大学 通信与信息工程学院,上海市特种光纤与光接入网省部共建重点实验室,上海 200072;上海大学 通信与信息工程学院,上海市特种光纤与光接入网省部共建重点实验室,上海 200072;上海大学 通信与信息工程学院,上海市特种光纤与光接入网省部共建重点实验室,上海 200072;上海大学 通信与信息工程学院,上海市特种光纤与光接入网省部共建重点实验室,上海 200072 |
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| 基金项目： | 国家自然科学基金(61178088,61475098)、上海市科技创新行动计划 (14511100100)和上海市科委科研计划(14440500100)资助项目 (上海大学 通信与信息工程学院,上海市特种光纤与光接入网省部共建重点实验室,上海 200072) |
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| 摘 要： | 混合光环晶格是由束腰半径相同、拓扑电荷数分 别为整数和分数的两束拉盖尔-高斯(LG,Laguerre-Gaussian)涡旋光束共轴叠加 而成。本文理论模拟产生了混合光环晶格,包括混合亮环晶格和混合暗环晶格；基于共轭对 称延拓傅里叶 计算全息生成了混合光环晶格的全息图,并利用反射式空间光调制器(SLM),光电再现了高 质量的混合光环 晶格,实验结果与理论模拟一致。研究表明,混合光环晶格可以揭示拓扑电荷数的变化对 光环晶格的光束 分布影响,对深入理解复合涡旋光束提供了实验依据。
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| 关 键 词： | 物理光学 涡旋光束 计算全息图 共轴叠加 |
| 收稿时间： | 2015/5/11 0:00:00 |
Experimental study on hybrid optical ring lattices |
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| Affiliation: | Shanghai Key Laboratory of Special Fiber Optics and Optical Access Networks,Sc hool of Communication and Information Engineering,Shanghai University,Shanghai 200072,China;Shanghai Key Laboratory of Special Fiber Optics and Optical Access Networks,Sc hool of Communication and Information Engineering,Shanghai University,Shanghai 200072,China;Shanghai Key Laboratory of Special Fiber Optics and Optical Access Networks,Sc hool of Communication and Information Engineering,Shanghai University,Shanghai 200072,China;Shanghai Key Laboratory of Special Fiber Optics and Optical Access Networks,Sc hool of Communication and Information Engineering,Shanghai University,Shanghai 200072,China;Shanghai Key Laboratory of Special Fiber Optics and Optical Access Networks,Sc hool of Communication and Information Engineering,Shanghai University,Shanghai 200072,China |
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| Abstract: | Hybrid optical ring lattices are generated by coaxial superposition of two Laguerre-Gaussian vortex beams with the same waist parameters and different topological charge numbers of integer and fraction respectively. We simulate the hybrid optical ring lattices theoretically,including hybrid opt ical bright-ring lattice and hybrid optical dark-ring lattice.The holograms of hybrid optical ring lattice are enc oded using Fourier computer-generated holography based on conjugate-symmetric extension.Employin g a reflected-type spatial light modulator,we reconstruct the hybrid optical ring lattices by optical expe riment.Excellent agreement between theoretical and experimental results is achieved.Researches show the i nfluence of topological charge number on the distribution of optical ring lattices,and provide some experiment al basis for understanding composite vortex beams. |
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| Keywords: | physical optics vortex beam computer-generated hologram coaxial superpositi on |
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