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Opto-Electronic Advances 2024年第9期7卷 22-38页

作者： Xuan Tian Runze Li Tong Peng Yuge Xue junwei min Xing Li Chen Bai Baoli Yao State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China University of Chinese Academy of Sciences Beijing 100049China.

Digital in-line holographic microscopy(DIHM)is a widely used interference technique for real-time reconstruction of living cells’morphological information with large space-bandwidth product and compact ***,the need for a larger pixel size of detector to improve imaging photosensitivity,field-of-view,and signal-to-noise ratio often leads to the loss of sub-pixel information and limited pixel ***,the twin-image appearing in the reconstruction severely degrades the quality of the reconstructed *** deep learning(DL)approach has emerged as a powerful tool for phase retrieval in DIHM,effectively addressing these ***,most DL-based strategies are datadriven or end-to-end net approaches,suffering from excessive data dependency and limited generalization ***,a novel multi-prior physics-enhanced neural network with pixel super-resolution(MPPN-PSR)for phase retrieval of DIHM is *** encapsulates the physical model prior,sparsity prior and deep image prior in an untrained deep neural *** effectiveness and feasibility of MPPN-PSR are demonstrated by comparing it with other traditional and learning-based phase retrieval *** the capabilities of pixel super-resolution,twin-image elimination and high-throughput jointly from a single-shot intensity measurement,the proposed DIHM approach is expected to be widely adopted in biomedical workflow and industrial measurement.

关键词： optical microscopy quantitative phase imaging digital holographic microscopy deep learning super-resolution

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高精度定量相位显微成像方法研究

光学学报 2024年第2期44卷 24-35页

作者：闵俊伟郜鹏但旦郑娟娟于湘华姚保利中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室陕西西安710119 西安电子科技大学物理学院陕西西安710071

定量相位显微成像在工业检测、生物医学和光场调控等领域具有重要的应用价值。常用的定量相位显微成像技术通过干涉的方法来获取相位的定量分布,干涉装置的稳定性、光学衍射极限的限制、相位再现时的解包裹问题、激光照明下的相干噪声,... 详细信息

定量相位显微成像在工业检测、生物医学和光场调控等领域具有重要的应用价值。常用的定量相位显微成像技术通过干涉的方法来获取相位的定量分布,干涉装置的稳定性、光学衍射极限的限制、相位再现时的解包裹问题、激光照明下的相干噪声,以及动态观测过程中的样品离焦等因素都会影响定量相位显微成像的分辨率和精度。本文围绕高精度定量相位显微成像中的上述关键问题展开研究,通过构建物参共路的同步相移数字全息显微结构实现稳定的实时测量;采用结构光照明的超分辨相位成像方法实现对微小物体的超分辨相位成像;利用双波长照明将纵向无包裹相位测量范围扩大到微米量级;使用低相干LED照明解决相干噪声问题;提出了基于结构光照明和双波长照明的数字全息显微自动调焦方法,可以满足对不同类型样品的长时间跟踪观测。

关键词：定量相位显微成像物参共路结构光照明相位解包裹自动调焦

超高速和极高速光学成像技术研究进展(特邀)

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激光与光电子学进展 2024年第2期61卷 281-304页

作者：栗星柏晨李润泽彭彤田璇闵俊伟杨延龙但旦于湘华梁晋阳姚保利中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室陕西西安710119 中国科学院大学北京100049 魁北克大学国立科学研究院能源材料与通讯研究所应用计算成像实验室加拿大魁北克J3X1P7

高速成像技术在物理、化学、生物医学、材料科学及工业等众多领域扮演着十分重要的角色。受电荷存储和读取速度的限制,基于电子成像器件的数码相机成像速度难以进一步提高。近年来,随着成像新技术的发展,超高速和极高速光学成像的性能... 详细信息

高速成像技术在物理、化学、生物医学、材料科学及工业等众多领域扮演着十分重要的角色。受电荷存储和读取速度的限制,基于电子成像器件的数码相机成像速度难以进一步提高。近年来,随着成像新技术的发展,超高速和极高速光学成像的性能已得到显著提升,具备更高的时间分辨率、空间分辨率及更大的序列深度等。介绍高速成像技术的发展历程,根据成像方式,将近年来具有代表性的新型超高速和极高速光学成像技术分为直接成像和编码计算成像两个类别。分别介绍和讨论各种新型超高速和极高速光学成像技术的概念和原理,并比较各自的优缺点。最后,对这一领域的发展趋势和前景进行展望。本文旨在帮助研究者系统了解超高速和极高速光学成像技术的基本知识、最新研究发展趋势和潜在应用,为该领域科学研究提供参考。

关键词：高速成像超高速成像极高速成像时间分辨率空间分辨率序列深度

Digital holographic shape measurement using Fizeau microscopy

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Chinese Optics Letters 2015年第10期13卷 40-44页

作者： D.G.Abdelsalam junwei min Daesuk Kim Baoli Yao State Key Laboratory of Transient Optics and Photonics Xi'an Institute of Optics and Precision MechanicsChinese Academy of Sciences Engineering and Surface Metrology Laboratory National Institute of Standards Division of Mechanical System Engineering Chonbuk National University

We present a Fizeau interferometer using a microscopic objective as a tool for surface contouring without the need for a numerical lens for reconstruction. The interferometer is associated with a telescope system to feature the object with collimated light. The experiment is conducted on two objects possessing different step *** phase maps from the captured off-axis holograms are calculated numerically, which allows us to deduce the contours of the objects. The great advantages of the presented technique are that it can be done in real time and there is no need for numerical lenses for micro-objects reconstruction.

关键词： interferometer holographic captured reconstructed numerically microscopic Reconstruction compensate wavefront filtered

Characteristics of Solute Transport Continuously Released from Coastal Unconfined Aquifers under the Tidal Action Based on Laboratory Experiment

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Journal of Earth Science 2024年第5期35卷 1738-1748页

作者： min Guo junwei Wan Kun Huang Hubei Key Laboratory of mine Environmental Pollution Control and Remediation Hubei Polytechnic UniversityHuangshi435003China School of Environmental Studies China University of GeosciencesWuhan 430074China

Most studies on solute transport in coastal aquifers affected by tides focus on the transport of instantaneous released solute,and there are few studies on continuously released solute affected by *** this study,the image monitoring method is used to establish the quantitative relationship between the concentration of the colored tracer and the hue value of the image,and the digital image is used to determine the tracer concentration *** image monitoring method laboratory experiments,quantitative analysis of the characteristics of continuously released solute transport in coastal unconfined aquifers under the tidal *** show that the high tide inhibits the increase in the concentration of each point in the *** the influence of tides,the solute plume retreats towards the *** the low tide period,the solute plume migrates toward the sea *** the solute plume will maintain a relatively stable shape after entering the aquifer for a long enough *** the tidal effect seems to have little effect on the estimation of the position of the solute plume,but ignoring the tidal effect has a certain influence on the estimation of the dispersion range of the solute *** matter whether considering the tidal action,the final dispersion range of the solute plume is almost the *** before the solute plume reaches a stable state,ignoring the tidal effect will lead to a smaller dispersion range of the solute plume.

关键词： tidal action coastal unconfined aquifers continuously released solute solute transport image monitoring method marine geology

Dual-wavelength in-line digital holography with untrained deep neural networks

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Photonics Research 2021年第12期9卷 2501-2510页

作者： CHEN BAI TONG PENG junwei min RUNZE LI YUAN ZHOU BAOLI YAO State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China Xi’an Jiaotong University Xi’an 710049China Pilot National Laboratory for Marine Science and Technology(Qingdao) Qingdao 266200China

Dual-wavelength in-line digital holography(DIDH)is one of the popular methods for quantitative phase imaging of objects with non-contact and high-accuracy *** technical challenges in the reconstruction of these objects include suppressing the amplified noise and the twin-image that respectively originate from the phase difference and the phase-conjugated *** contrast to the conventional methods,the deep learning network has become a powerful tool for estimating phase information in DIDH with the assistance of noise suppressing or twin-image removing ***,most of the current deep learning-based methods rely on supervised learning and training instances,thereby resulting in weakness when it comes to applying this training to practical imaging *** this paper,a new DIDH network(DIDH-Net)is proposed,which encapsulates the prior image information and the physical imaging process in an untrained deep neural *** DIDHNet can effectively suppress the amplified noise and the twin-image of the DIDH simultaneously by automatically adjusting the weights of the *** obtained results demonstrate that the proposed method with robust phase reconstruction is well suited to improve the imaging performance of DIDH.

关键词： neural networks network

Rosemary leaf powder improves egg quality, antioxidant status, gut barrier function, and cecal microbiota and metabolites of late-phase laying hens

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Animal Nutrition 2024年第2期17卷 325-334页

作者： Lianhua Zhang junwei Ge Fei Gao min Yang Hui Li Fei Xia Hongtong Bai Xiangshu Piao Zhiying Sun Lei Shi Key Laboratory of Plant Resources Institute of Botany Chinese Academy of Sciences China National Botanical Garden State Key Laboratory of Animal Nutrition Institute of Animal Science Chinese Academy of Agricultural Sciences College of Pharmacy Shandong University of Traditional Chinese Medicine University of Chinese Academy of Sciences Beijing Jingwa Agricultural Science&Technology Innovation Center State Key Laboratory of Animal Nutrition College of Animal Science and Technology China Agricultural University

his study sought to determine the effects of rosemary leaf powder(RP) on laying performance, egg quality, serum indices, gut barrier function, and cecal microbiota and metabolites of late-phase laying hens. A total of 84 “Jing Tint 6” laying hens at 65-week old were randomly divided into 2 groups and fed either a basal diet(CON) or a basal diet supplemented with 0.3% RP. Our study revealed that RP improved the Haugh unit and decreased yolk n-6/n-3 polyunsaturated fatty acid(PUFA) ratio of laying hens,increased serum superoxide dismutase(SOD), jejunal activities of SOD and catalase(CAT), and jejunal zonula occludens-1(ZO-1) expression, as well as decreased serum tumor necrosis factor-a(TNF-a) level and jejunal TNF-a m RNA expression. Rosemary leaf powder markedly enhanced(P minomutase, β-lysine 5,6-aminomutase, and 3-oxoacid Co A-transferase. Together, 0.3% RP has the potential to enhance egg quality by partially modulating serum antioxidant status, jejunal barrier function, and cecal microbiota structure and metabolites,indicating that RP could be considered a promising feed additive to promote the production performance of late-phase laying hens.

关键词： Rosemary leaf powder Production Antioxidant status Gut health Microbial community Laying hen

Rosemary extract improves egg quality by altering gut barrier function,intestinal microbiota and oviductal gene expressions in late-phase laying hens

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Journal of Animal Science and Biotechnology 2024年第1期15卷 295-312页

作者： Lianhua Zhang junwei Ge Fei Gao min Yang Hui Li Fei Xia Hongtong Bai Xiangshu Piao Zhiying Sun Lei Shi Key Laboratory of Plant Resources Institute of BotanyChinese Academy of SciencesBeijing 100093China China National Botanical Garden Beijing 100093China College of Pharmacy Shandong University of Traditional Chinese MedicineJinan 250355China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China

Background Rosemary extract(RE)has been reported to exert antioxidant ***,the application of RE in late-phase laying hens on egg quality,intestinal barrier and microbiota,and oviductal function has not been systematically *** study was investigated to detect the potential effects of RE on performance,egg quality,serum parameters,intestinal heath,cecal microbiota and metabolism,and oviductal gene expressions in late-phase laying hens.A total of 21065-week-old“Jing Tint 6”laying hens were randomly allocated into five treatments with six replicates and seven birds per replicate and fed basal diet(CON)or basal diet supplemented with chlortetracycline at 50 mg/kg(CTC)or RE at 50 mg/kg(RE50),100 mg/kg(RE100),and 200 mg/kg(RE200).Results Our results showed that RE200 improved(Pmino acid metabolism of cecal microbiota and increased butyrate synthesizing enzymes,including 3-oxoacid Co A-transferase and butyrate-acetoacetate Co ***,transcriptomic analysis revealed that RE200 improved gene expressions and functional pathways related to immunity and albumen formation in the oviductal *** Dietary supplementation with 2

关键词： Intestinal health Laying hens Microbiota Oviductal function Phytochemicals Production

Digital holographic microscopy with phase-shift-free structured illumination

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Photonics Research 2014年第3期2卷 87-91页

作者： Juanjuan Zheng Peng Gao Baoli Yao Tong Ye ming Lei junwei min Dan Dan Yanlong Yang Shaohui Yan State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China Institut für Technische Optik Universität StuttgartPfaffenwaldring 970569 StuttgartGermany Department of Bioengineering Clemson UniversityClemson-MUSC Bioengineering ProgramCharlestonSouth Carolina 29425USA

When structured illumination is used in digital holographic microscopy(DHM),each direction of the illumination fringe is required to be shifted at least three times to perform the phase-shifting *** this paper,we propose a scheme for spatial resolution enhancement of DHM by using the structured illumination but without phase *** structured illuminations of different directions,which are generated by a spatial light modulator,illuminate the sample sequentially in the object *** formed object waves interfere with a reference wave in an off-axis configuration,and a CCD camera records the generated *** the object waves are reconstructed numerically,a synthetic aperture is performed by an iterative algorithm to enhance the spatial *** resolution improvement of the proposed method is proved and demonstrated by both simulation and experiment.

关键词： illumination holographic phase

Gas diffusion in catalyst layer of flow cell for CO_(2) electroreduction toward C_(2+) products

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Nano Research 2024年第3期17卷 1101-1106页

作者： Xiqing Wang Qin Chen Yajiao Zhou Yao Tan Ye Wang Hongmei Li Yu Chen Mahmoud Sayed Ramadan A.Geioushy Nageh K.Allam junwei Fu Yifei Sun min Liu Hunan Joint International Research Center for Carbon Dioxide Resource Utilization School of Physics and ElectronicsCentral South UniversityChangsha 410083China School of Energy and Power Engineering Beihang UniversityBeijing 100191China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450002China Central Metallurgical Research and Development Institute(CMRDI) P.O.Box 87Helwan 11421CairoEgypt Energy Materials Laboratory School of Sciences and EngineeringThe American University in CairoNew Cairo 11835Egypt Research Center for Advanced Energy and Carbon Neutrality Beihang UniversityBeijing 100191China

The use of gas diffusion electrode(GDE)based flow cell can realize industrial-scale CO_(2) reduction reactions(CO_(2)RRs).Controlling local CO_(2) and CO intermediate diffusion plays a key role in CO_(2)RR toward multi-carbon(C_(2+))*** this work,local CO_(2) and CO intermediate diffusion through the catalyst layer(CL)was investigated for improving CO_(2)RR toward C_(2+)*** gas permeability tests and finite element simulation results indicated CL can balance the CO_(2) gas diffusion and residence time of the CO intermediate,leading to a sufficient CO concentration with a suitable CO_(2)/H_(2)O supply for high C_(2+)*** a result,an excellent selectivity of C_(2+)products~79%at a high current density of 400 mA·cm^(-2) could be obtained on the optimal 500 nm Cu CL(Cu500).This work provides a new insight into the optimization of CO_(2)/H_(2)O supply and local CO concentration by controlling CL for C_(2+)products in CO_(2)RR flow cell.

关键词： gas diffusion electrode CO_(2)reduction Cu mass transfer C_(2)product