基于整形非相干源的相位恢复
Phase retrieval based on shaped incoherent sources
摘要：
现有的鬼像相位重建方案需要复杂的光学系统、傅里叶变换步骤或迭代算法，这可能会增加系统设计的难度，导致相位恢复误差或花费太多时间。为了解决这个问题，我们提出了一个五步相移方法，其中不需要复杂的光学系统，傅里叶变换步骤，或迭代算法。利用设计的五个非相干光源，可以得到五个不同的鬼像，然后由这五个散斑图可以计算出物体的相位信息。通过对两类复杂目标的数值仿真，验证了该理论方案的适用性，结果表明该方法可以成功地定量地重构复杂目标的相位信息。
英文摘要：
The current ghost imaging phase reconstruction schemes require either complex optical systems, Fourier transform steps, or iterative algorithms, which may increase the difficulty of system design, cause phase retrieval error or take too much time. To address this problem, we propose a five-step phase-shifting method in which no complex optical systems, Fourier transform steps, or iterative algorithms are needed. With five designed incoherent sources, one can obtain five different corresponding ghost imaging patterns, then the phase information of the object can be calculated from those five speckle patterns. The applicability of this theoretical proposal is demonstrated via numerical simulations with two kinds of complicated objects, and the results illustrate the phase information of the complicated object can be reconstructed successfully and quantitatively.
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