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初级慧差对圆偏振涡旋贝塞尔-高斯光束聚焦场的影响 被引量:5

Effect of Primary Coma Aberration on Focusing of a Circularly Polarized Vortex Bessel-Gaussian Beams
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摘要 利用Richards-Wolf矢量衍射公式,获得圆偏振涡旋贝塞尔-高斯光束经具有初级慧差高数值孔径系统聚焦后的三维光场复振幅函数,模拟了不同慧差系数下圆偏振涡旋贝塞尔-高斯光束的聚焦光场。研究表明,初级慧差使圆偏振涡旋贝塞尔-高斯光束的聚焦光场分布模式和空间位置发生改变;初级慧差系数的正、负不改变光场分布模式;初级慧差不会影响光轴上光强分布的对称性,而是改变光强分布曲线。 Based on Richards and Wolf vectorial diffraction integral,three-dimensional light field complex amplitude function is presented when circularly polarization vortex Bessel-Gaussian beam passes through a high numerical-aperture system with primary coma aberration.The highly-focusing fields with different comatic aberration coefficients are presented.The results show that the presence of primary coma aberration makes the pattern and position of light distribution change.The pattern of light distribution does not depend on sign of comatic aberration coefficient.As for intensity distribution along the optical axis,primary coma aberration does not change its symmetry,but affects its form.
作者 赵肇雄 刘勇
机构地区 肇庆学院物理系
出处 《中国激光》 EI CAS CSCD 北大核心 2010年第3期739-742,共4页 Chinese Journal of Lasers
基金 广东省科技计划(2004B10101015)资助项目
关键词 物理光学 高数值孔径 圆偏振涡旋贝塞尔-高斯光束 矢量衍射 初级慧差 physical optics high numerical-aperture circularly polarization vortex Bessel-Gaussian beam vectorial diffraction primary coma aberration
作者简介 赵肇雄(1964-),男,硕士,讲师,主要从事光纤通信和光器件方面的研究及教学工作。E-mail:zhaosn@21cn.com 通信联系人。E-mail:liuyong7612@sina.com
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参考文献13

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