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首页> 外文期刊>Applied optics >Phase retrieval by means of a spatial light modulator in the Fourier domain of an imaging system
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Phase retrieval by means of a spatial light modulator in the Fourier domain of an imaging system

机译：通过成像系统傅立叶域中的空间光调制器进行相位检索

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摘要

We present an experimental configuration for phase retrieval from a set of intensity measurements. The key component is a spatial light modulator located in the Fourier domain of an imaging system. It performs a linear filter operation that is associated to the process of propagation in the image plane. In contrast to the state of the art, no mechanical adjustment is required during the recording process, thus reducing the measurement time considerably. The method is experimentally demonstrated by investigating a wave field scattered by a diffuser, and the results are verified by comparing them to those obtained from standard interferometry.
机译：我们提出了一种用于从一组强度测量中进行相位检索的实验配置。关键组件是位于成像系统傅立叶域中的空间光调制器。它执行与图像平面中传播过程相关的线性滤波操作。与现有技术相反，在记录过程中不需要机械调整，从而大大减少了测量时间。通过研究由扩散器散射的波场，通过实验证明了该方法，并将其与从标准干涉仪获得的结果进行了比较，从而验证了结果。

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