Quantum enhanced non-interferometric quantitative phase imaging
作者机构：Quantum Metrology and Nano Technology DivisionINRiMStrada delle Cacce 9110135 TorinoItaly DISATPolitecnico di TorinoCorso Duca degli Abruzzi 2410129 TorinoItaly imaging Physics Department Optics Research GroupFaculty of Applied SciencesDelft University of TechnologyLorentzweg 12628CJ DelftThe Netherlands
出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)
年 卷 期：2023年第12卷第8期
页 面：1633-1643页
核心收录：
学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
基 金：funding by the project 20FUN02 POLight of the EMPIR program co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation program the European Union's Horizon 2020 Research and Innovation Action under Grant Agreement Qu-Test the Project Trapezio QuaFuPhy of San Paolo bank foundation
摘 要：Quantum entanglement and squeezing have significantly improved phase estimation and imaging in interferometric settings beyond the classical ***,for a wide class of non-interferometric phase imaging/retrieval methods vastly used in the classical domain,e.g.,ptychography and diffractive imaging,a demonstration of quantum advantage is still ***,we fill this gap by exploiting entanglement to enhance imaging of a pure phase object in a non-interferometric setting,only measuring the phase effect on the free-propagating *** method,based on the so-calledtransport of intensity equation,is quantitative since it provides the absolute value of the phase without prior knowledge of the object and operates in wide-field mode,so it does not need time-consuming raster ***,it does not require spatial and temporal coherence of the incident *** a general improvement of the image quality at a fixed number of photons irradiated through the object,resulting in better discrimination of small details,we demonstrate a clear reduction of the uncertainty in the quantitative phase *** we provide an experimental demonstration of a specific scheme in the visible spectrum,this research also paves the way for applications at different wavelengths,e.g.,X-ray imaging,where reducing the photon dose is of utmost importance.
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