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涡旋光束单缝衍射的理论和实验研究 被引量：11

Theoretical and Experimental Study on Vortex Beam Transmitted Through a Single-Slit
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摘要 根据菲涅耳衍射积分,研究了拉盖尔-高斯光束经过单缝衍射后的光强分布。研究表明,拉盖尔-高斯光束经过单缝后衍射条纹会发生断层和弯曲,弯曲的方向和程度跟拓扑电荷数紧密相关。实验结果也证实了这一现象。还研究了拉盖尔-高斯光束经过单缝后的螺旋谱。研究表明,单缝的存在会使螺旋谱展宽,展宽程度受到拓扑电荷数、光斑大小以及单缝缝宽的影响。 Based on the Fresnel diffraction integral,the intensity distribution of Laguerre-Gaussian beam transmitted through a single-slit has been investigated. It is found that the diffraction fringes of vortex beams will dislocation and shift in the diffraction field,and the direction and the amplitude of the shifts is closely related with the topological charge. These results have been demonstrated experimentally in this paper. In addition,the spiral spectral of vortex beams transmitted through the single-slit has also been discussed. It is shown that the spiral spectrum will be broadened due to the limit of the single-slit,and the broadening depends on the topological charge,the beam size,and the width of the single-slit.
作者 王涛 蒲继雄
机构地区 华侨大学电子科学与技术系
出处 《中国激光》 EI CAS CSCD 北大核心 2009年第11期2902-2907,共6页 Chinese Journal of Lasers
基金 福建省科技计划重点项目(2007H0027) 福建省自然科学基金(A0810012)资助课题
关键词 物理光学 拉盖尔高斯光束 单缝衍射 光强分布 螺旋谱 physical optics Laguerre-Gaussian beam single-slit diffraction intensity distribution spiral spectrum
分类号 O436.1 [机械工程—光学工程]
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参考文献14

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二级参考文献78

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共引文献33

同被引文献112

  • 1荣振宇,国承山,张莉,刘轩,任秀云,王慧田.液晶光调制计算全息相移器[J].中国激光,2004,31(6):693-697. 被引量：14
  • 2刘义东,高春清,高明伟,李丰.利用光束的轨道角动量实现高密度数据存储的机理研究[J].物理学报,2007,56(2):854-858. 被引量：26
  • 3刘晓云 唐宏亮 李倩等.部分相干电磁涡旋光束的聚焦特性.中国激光,2009,36(1):199-204.
  • 4王涛 蒲继雄 陈子阳.涡旋光束在湍流大气中的传输特性.光学学报,2008,28(2):82-86.
  • 5I. V. Basistiy, M. S. Soskin, M. V. Vasnetsov. Optical wavefront dislocations and their properties[J]. Opt. Commun., 1995, 119(5-6): 604-612.
  • 6L. Allen, M. W. Beijersbergen, R. J. C. Spreeuw et al.. Orbital angular momentum of light and the transformation of Laguerre-Gaussianlaser modes[J]. Phys. Rev. A, 1992, 45(11): 8185-8189.
  • 7H. He, M. E. Friese, N. R. Heckenberg et al.. Direct observation of transfer of angular momentum to absorptive particles from a laser beam with a phase singularity[J]. Phys. Rev. Lett. , 1995, 75(5): 826-829.
  • 8Q. S. Xie, D. M. Zhao. Optical vortices generated by multi level achromatic spiral phase plates for broadband beams[J]. Opt. Commun. , 2008, 281(1): 7-11.
  • 9L. Z. Rao, J. X. Pu. Spatial correlation properties of focused partially coherent vortex beams[J]. J. Opt. Soc. Am. A, 2007, 24(8): 2242-2247.
  • 10Z. M. Zhang, J. X. Pu, X. Q. Wang. Tight focusing of radially and azimuthally polarized vortex beams through a uniaxial birefringent crystal[J]. Appl. Opt. , 2008, 47(12) : 1963-1967.

引证文献11

二级引证文献46

中国激光
2009年 第11期

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