| 离轴障碍物Bessel光束的重建 |
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| 引用本文： | 吴逢铁,刘彬,卢文和,马宝田.离轴障碍物Bessel光束的重建[J].光电子．激光,2009,20(3). |
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| 作者姓名： | 吴逢铁 刘彬 卢文和 马宝田 |
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| 作者单位： | 华侨大学信息科学与工程学院,福建,泉州,362021
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| 基金项目： | 国家自然科学基金，福建省自然科学基金 |
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| 摘 要： | 利用Hankel理论,对障碍物离轴时Bessel光束的重建过程进行了分析.实验中,用体视显微镜及CCD系统记录了Bessel光束经离轴障碍物遮挡后的光强变化.针对Bessel光束被障碍物阻碍后的重建现象,对轴上障碍物及离轴障碍物两种情况进行了比较.结果表明,两种情况的遮挡均能使Bessel光束重建,不同的是对相同尺寸的障碍物离轴障碍物完全重建比轴上障碍物完全重建需要更长的距离.
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| 关 键 词： | 物理光学 无衍射Bessel光 自重建 轴棱锥 |
Reconstruction of Bessel beams with an obstacle set off the axial |
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| WU feng-tie,LIU Bin,LU Wen-he,MA Bao-tian.Reconstruction of Bessel beams with an obstacle set off the axial[J].Journal of Optoelectronics·laser,2009,20(3). |
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| Authors: | WU feng-tie LIU Bin LU Wen-he MA Bao-tian |
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| Affiliation: | College of Information Science and Engineering;Huaqiao University;Quanzhou;fujian;362021 China |
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| Abstract: | Based on Hankel waves theory,the reconstruction of the Bessel beam disturbed by an opaque obstacle set off the axial is studied.In the experiment,the profiles of transverse intensity of the reconstruction beam in different propagation distances are captured using the microscope and CCD-camera.By comparing the cases of on-axial and off-axial,it is shown that,in the two cases,the distorted Bessel beam can be reconstructed,and the reconstruction distance of off-axial is longer than that of on-axial. |
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| Keywords: | physical optics non-diffracting Bessel beams self-reconstruction axicon |
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