中国激光, 2013, 40 (2): 0202008, 网络出版: 2012-12-21   

平面光斜入射叉形光栅获取涡旋光束的特性

Properties of Vortex Beams with Plane Beam Oblique Incidence of Fork-Shaped Grating
作者单位
1 燕山大学理学院, 河北 秦皇岛 066004
2 燕山大学里仁学院, 河北 秦皇岛 066004
摘要
基于由计算全息法制作的叉形光栅,研究了平面光束斜入射叉形光栅对涡旋光束特性的影响。从理论上分析平面光束斜入射叉形光栅时,两对称分布涡旋光束间距随平面光与光栅平面的夹角α变化而增大;实验进一步验证了随α角的增大,对称分布的衍射涡旋光束亮斑间距也增大。该研究结果对计算全息法产生高质量涡旋光束的实验有一定的指导意义。
Abstract
Based on the fork-shaped grating produced by the computer-generated hologram (CGH), the effect of the plane beam oblique incidence of fork-shaped grating on the vortex beams property is discussed. The theoretical study shows that when the plane beam tilts into the fork-shaped grating, the distance of each both symmetric distributed vortex beams is changed with the angle α between the planar optical and the grating. The experiments show that the distance of the symmetric distributed diffractive vortex beams spots increases with α. The research results show that the generation of high quality vortex beams is feasible with CGH in experiments.
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孟祥君, 朱艳英, 陈志婷, 魏勇, 张磊, 赵宝林, 郭西华. 平面光斜入射叉形光栅获取涡旋光束的特性[J]. 中国激光, 2013, 40(2): 0202008. Meng Xiangjun, Zhu Yanying, Chen Zhiting, Wei Yong, Zhang Lei, Zhao Baolin, Guo Xihua. Properties of Vortex Beams with Plane Beam Oblique Incidence of Fork-Shaped Grating[J]. Chinese Journal of Lasers, 2013, 40(2): 0202008.

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