Parallel three-step-phase-shifting digital holography
Parallel three-step-phase-shifting digital holography
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DOI：
10.1364/aopt.2005.jwb4
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发表时间：
2005-06
期刊：
影响因子：
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通讯作者：
Y. Awatsuji;A. Fujii;T. Onchi;T. Kubota;O. Matoba
中科院分区：
文献类型：
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作者：
Y. Awatsuji;A. Fujii;T. Onchi;T. Kubota;O. Matoba
我们提出了一种并行相移数字全息技术，作为一种能够无噪声瞬时应用于三维物体的技术，如测量和物体识别。该技术利用位于参考波束中的移相阵列装置一次实现三步移相。该装置是由三种相位延迟器组成的阵列。利用该技术对重建图像进行了数值模拟。仿真结果与传统移相数字全息的结果吻合较好，优于另一种瞬时应用技术——菲涅耳变换的结果。
We propose a parallel phase-shifting digital holography as a technique capable of noiseless instantaneous applications for three-dimensional objects such as measurement and object recognition. The technique carries out the three-step-phase-shifting at a time using a phase-shifting array device located in the reference beam. The device is an array of three kinds of phase retarders. We numerically simulate the reconstructed image by the technique. The result of the simulation agrees well with that of the conventional phase-shifting digital holography, and it is superior to the result obtained by the conventional digital holography using a Fresnel transform alone, which is another technique capable of instantaneous applications.