Experimental demonstration of scanning phase retrieval by a noniterative method with a Gaussian-amplitude beam
Experimental demonstration of scanning phase retrieval by a noniterative method with a Gaussian-amplitude beam
复制标题
使用高斯振幅光束的非迭代方法进行扫描相位恢复的实验演示
DOI：
10.1016/j.optcom.2016.08.033
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发表时间：
2017
影响因子：
2.4
通讯作者：
Nobuharu Nakajima and Masayuki Yoshino
中科院分区：
文献类型：
--
作者：
中野由崇，中村圭二，新部正人，川上烈生;貴傳名健吾，新部正人，横田久美子，田川雅人，古山雄一，小松啓記，斎藤秀俊，神田一浩;Nobuharu Nakajima and Masayuki Yoshino
我们提出了在探测光束扫描照明下相干成像系统的解析（非迭代）相位检索方法的原理验证实验。该方法允许在物平面中已知高斯振幅光束的扫描照明下，根据在物体的傅里叶平面中的三个点测量的强度来重建半透明物体在大范围内的振幅和相位分布。与干涉测量技术的测量系统相比，本发明的测量系统非常简单，并且由于该方法基于相位恢复的解析解，所以该方法中相位恢复的计算速度比迭代算法更快。该方法的有效性在用于划痕标准的会聚透镜和塑料板的物体重建的实验示例中得到了证明。
We present a proof-of-principle experiment of an analytic (noniterative) phase-retrieval method for coherent imaging systems under scanning illumination of a probe beam. This method allows to reconstruct the amplitude and phase distribution of a semi-transparent object over a wide area from intensities measured at three points in the Fourier plane of the object under scanning illumination of a known Gaussian-amplitude beam in the object plane. The present measurement system is very simple in contrast to ones of interferometric techniques, and also the speed of the calculation of phase retrieval in this method is faster than that in iterative algorithms since this method is based on an analytic solution to the phase retrieval. The effectiveness of this method is shown in experimental examples of the object reconstructions of a converging lens and a plastic plate for scratch standards.