TY - A2的刘魏盟-凯利,Damien p . PY - 2018 DA - 2018/10/01 TI -测量光场的两个强度测量阶段:分析一个简单的理论模型SP - 9560401六世- 2018 AB -标量傍轴近似下,光学波场被认为是复杂的函数依赖的位置;即。,在一个给定的位置在空间光场强度和相位是一个复杂的价值。光学波场传播通过空间和可以使用菲涅耳变换建模。镜片、光阑和其他光学元素可用于控制和操作波场和执行不同类型的信号处理操作。通常描述这些光学系统理论的线性系统理论导致常用的傅里叶光学框架。这是理论框架,我们将假设在这个手稿。我们考虑的问题是如何恢复阶段的光学波场在一个平面空间。虽然今天是相对简单的测量光学波场的强度在一架飞机使用CMOS、CCD传感器恢复相位信息是更复杂的。这里我们专门研究阶段问题检索的一种变体使用两个强度测量。 The intensity of the optical wavefield is recorded in both the image plane and the Fourier plane. To make the analysis simpler, we make a series of important theoretical assumptions and describe how in principle the phase information can be recovered. Then, a deterministic but iterative algorithm is derived and we examine the characteristics and properties of this algorithm. Finally, we examine some of the theoretical assumptions we have made and how valid these assumptions are in practice. We then conclude with a brief discussion of the results. SN - 1687-9384 UR - https://doi.org/10.1155/2018/9560401 DO - 10.1155/2018/9560401 JF - International Journal of Optics PB - Hindawi KW - ER -