光学学报, 2010, 30 (2): 557, 网络出版: 2010-02-02   

利用C切钒酸钇晶体产生轴对称偏振光

Generation of Cylindrical Vector Beams by Use of C-Cut YVO4 Crystal
作者单位
中国科学技术大学 精密机械与精密仪器系,安徽 合肥 230027
摘要
研究了利用高双折射的c切钒酸钇(YVO4)晶体产生轴对称偏振光(包括径向偏振光和角向偏振光)的原理和实现方法,搭建了轴对称偏振光产生及定性测量平台。实验结果表明,当输入光为圆偏振光时,输出光为偏振态关于中心对称、强度均匀分布的轴对称偏振光;当输入光为线偏振光时,输出光偏振态关于中心对称,强度沿圆周呈余弦分布。轴对称偏振光在光操纵、材料加工和高分辨率显微测量等领域具有广泛的应用前景。
Abstract
The principle and realization of the generation of cylindrical vector beams (CVB),including radially polarized beams (RPB) and azimuthally polarized beams (APB),are presented by use of high-birefringence c-cut YVO4 crystal. The device for the production and qualitative measurement of RPB and APB is set up. The experimental results show that when the irradiation is circularly polarized beam,the output beams are cylindrical vector beams with centrosymmetrical polarization and homogeneous intensity distribution,and when the irradiation is linearly polarized beam,the polarization state of the output beam is centrosymmetrical while the intensity is of cosine distribution along the circumferential direction. The cylindrical vector beams have an broad application in many domains,such as optical manipulation,material processing and high-resolution measurement.

黄金堂, 韦玮雷, 张源, 王克逸. 利用C切钒酸钇晶体产生轴对称偏振光[J]. 光学学报, 2010, 30(2): 557. Huang Jintang, Wei WeiLei, Zhangyuan, Wang Keyi. Generation of Cylindrical Vector Beams by Use of C-Cut YVO4 Crystal[J]. Acta Optica Sinica, 2010, 30(2): 557.

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