Tankam Patrice, Picart Pascal, Mounier Denis, Desse Jean Michel, Li Jun-chang
Laboratoire d'Acoustique, Centre National de la Recherche Scientifique, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans, France.
Appl Opt. 2010 Jan 20;49(3):320-8. doi: 10.1364/AO.49.000320.
We discuss a method to record and reconstruct color holograms by using a stack of photodiode sensors associated to a one-way reference beam. The reconstruction algorithm follows a convolution strategy in which a transverse magnification leads to the full reconstruction of the object in the reconstructed horizon. The transverse magnification of the object depends on the curvature of the reference wave. Analysis of the spatial resolution indicates that it is linked to the transversal magnification but that no extra information is gained or lost in the process. Experimental results confirm the validity of the proposed approach for two-color digital holography. The error due to spectral mixing is investigated and found to be quite irrelevant compared to the range of the phase measurement.
我们讨论了一种通过使用与单向参考光束相关联的一堆光电二极管传感器来记录和重建彩色全息图的方法。重建算法遵循卷积策略，其中横向放大率导致在重建平面中对物体进行完全重建。物体的横向放大率取决于参考波的曲率。空间分辨率分析表明，它与横向放大率相关，但在此过程中不会获得或丢失额外信息。实验结果证实了所提出的双色数字全息术方法的有效性。研究了由于光谱混合引起的误差，发现与相位测量范围相比，该误差相当无关紧要。
