| 同心分区相位板对径向偏振光束的调制效应 |
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| 引用本文： | 李劲松,高秀敏.同心分区相位板对径向偏振光束的调制效应[J].四川激光,2008,29(4). |
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| 作者姓名： | 李劲松 高秀敏 |
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| 作者单位： | 中国计量学院光学与电子科学学院，杭州电子科技大学电子信息分院 |
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| 摘 要： | 理论上分析了同心分区相位板对径向偏振光聚焦性质的调制效应。模拟结果表明随着同心分区相位板各部分的半径,相移和偏振旋转角的改变,从而调制径向偏振光的分布,其焦点区域的光强度分布会发生改变,这些结果表明同心分区相位板对径向偏振光的调制效应及其可以用来生成可调光镊。
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| 关 键 词： | 径向偏振光 光强分布 光镊技术 |
The effect of concentric zones phase plate on radially polarized beam |
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| LI Jing-song,GAO Xiu-min.The effect of concentric zones phase plate on radially polarized beam[J].Laser Journal,2008,29(4). |
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| Authors: | LI Jing-song GAO Xiu-min |
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| Abstract: | The focusing properties in focal region of radially polarized beams through a concentric zones phase plate is investigated theoretically in this paper.Numerical simulations show that the evolution of the focal shape is very considerable by changing the radius,phase shift and polarization rotation angle of each section portion of the vector beam.Consequently,the focus shape will change.Which shows that the radially polarized beam can be used to construct controllable optical tweezers. |
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| Keywords: | radially polarized focus shape Optical tweezers technique |
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