任宇芬, 张腊梅. 空间频率对透射式全息图衍射率的影响[J]. 应用光学, 2008, 29(4): 649-652.
引用本文: 任宇芬, 张腊梅. 空间频率对透射式全息图衍射率的影响[J]. 应用光学, 2008, 29(4): 649-652.
REN Yu-fen, ZHANG La-mei. Influence of spatial frequency on diffraction efficiency of transmission hologram[J]. Journal of Applied Optics, 2008, 29(4): 649-652.
Citation: REN Yu-fen, ZHANG La-mei. Influence of spatial frequency on diffraction efficiency of transmission hologram[J]. Journal of Applied Optics, 2008, 29(4): 649-652.

空间频率对透射式全息图衍射率的影响

Influence of spatial frequency on diffraction efficiency of transmission hologram

  • 摘要: 为研究干涉条纹空间频率与透射式全息图衍射率的关系,在相同条件下,拍摄以平面波、发散的和会聚的球面波分别作参考光、物光的透射式全息图,通过实验测量其衍射效率,同时计算了干涉条纹的空间频率。然后以会聚的球面波为物光,平面波为参考光,分别改变入射角和球面波会聚点到记录面的距离制作另外4块透射式全息图,并计算了它们的空间频率,测量了其衍射效率。结果表明:在相同条件下制作透射式全息图时,衍射效率只由空间频率决定,与使用何种参考光和物光无关,空间频率仅随参考光和物光的夹角变化而变化。

     

    Abstract: In order to study the relation between the spatial frequency of interference fringes and the diffraction efficiency of transmission holograms, six transmission holograms in which the planar wave was used as reference beam and the spherical wave as object beam were taken under same situation. The diffraction efficiency was measured in the experiment and the spatial frequency was calculated. Moreover, taking the convergent spherical wave as the object beam and the planar wave as the reference beam, another four transmission holograms were made through changing the angle of the incidence light and the focus of the spherical wave, and then the diffraction efficiency was measured and the spatial frequency was calculated. The results show that the diffraction efficiency of transmission holograms made under same situation was determined by the spatial frequency but not by the reference beam or object beam, the spatial frequency changes only with the angle between the reference beam and the object beam, and that the diffraction efficiency changes according to the angle of incidence.

     

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