Fujimura R, Shimura T, Kuroda K
Institute of Industrial Science, The University of Tokyo, Meguro-ku, Tokyo, Japan.
Opt Express. 2010 Jan 18;18(2):1091-8. doi: 10.1364/OE.18.001091.
Holographic reconstruction with polychromatic light was investigated in terms of the multiplexing capability in a volume holographic memory. The broadband spectrum of the probe beam considerably degrades the angular selectivity and causes a serious deterioration of the multiplexing capability, but this can be overcome if an additional suitable optical component is used in the imaging system. We could selectively detect the signal image alone even though the angular separation between holograms was insufficient to suppress the diffraction from other holograms. We theoretically derived the minimum angular separation for multiplexing and experimentally demonstrated the effectiveness of this selective detection method.
针对体全息存储器中的复用能力，研究了用多色光进行全息重建。探测光束的宽带光谱会严重降低角度选择性，并导致复用能力严重下降，但如果在成像系统中使用额外的合适光学元件，这一问题可以得到克服。即使全息图之间的角间距不足以抑制来自其他全息图的衍射，我们也能够单独选择性地检测信号图像。我们从理论上推导了复用所需的最小角间距，并通过实验证明了这种选择性检测方法的有效性。
