Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
Opt Lett. 2009 Sep 1;34(17):2584-6. doi: 10.1364/OL.34.002584.
Based on a linear systems approach, we derive the Wigner distribution function (WDF) of a 4f imager with a volume holographic three-dimensional pupil; then we obtain the WDF of the volume hologram itself by using the shearing properties of the WDF. Two common configurations, plane and spherical wave reference volume holograms, are examined in detail. The WDF elucidates the shift variant nature of the volume holographic element in both cases.
基于线性系统方法，我们推导出具有体积全息三维光瞳的 4f 成像仪的维格纳分布函数（WDF）；然后，我们利用 WDF 的剪切特性获得体积全息本身的 WDF。详细研究了两种常见的配置，即平面波和球面波参考体积全息图。在这两种情况下，WDF 都阐明了体积全息元件的移位变化特性。
