相位恢复
光学
波前
计量学
单发
电介质
极化(电化学)
正交偏振光谱成像
物理
光电子学
材料科学
相(物质)
计算机科学
傅里叶变换
激光器
化学
量子力学
物理化学
作者
Einstom Engay,Dewang Huo,Radu Malureanu,Ada‐Ioana Bunea,Andrei V. Lavrinenko
出处
期刊:Nano Letters
[American Chemical Society]
日期:2021-04-22
卷期号:21 (9): 3820-3826
被引量:45
标识
DOI:10.1021/acs.nanolett.1c00190
摘要
Phase retrieval is a noninterferometric quantitative phase imaging technique that has become an essential tool in optical metrology and label-free microscopy. Phase retrieval techniques require multiple intensity measurements traditionally recorded by camera or sample translation, which limits their applicability mostly to static objects. In this work, we propose the use of a single polarization-dependent all-dielectric metasurface to facilitate the simultaneous recording of two images, which are utilized in phase calculation based on the transport-of-intensity equation. The metasurface acts as a multifunctional device that splits two orthogonal polarization components and adds a propagation phase shift onto one of them. As a proof-of-principle, we demonstrate the technique in the wavefront sensing of technical samples using a standard imaging setup. Our metasurface-based approach fosters a fast and compact configuration that can be integrated into commercial imaging systems.
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