Journal of The Optical Society of America A-optics Image Science and Vision最新文献_第5页

Performance analysis of an AUV-aided NOMA-based vertical UWOC system with a cascaded WGG turbulence model. 基于级联WGG湍流模型的auv辅助noma垂直UWOC系统性能分析。

IF 1.4 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI: 10.1364/JOSAA.529599

Weihan Hao, Ping Wang, Weina Pang, Binna Zhou, Linsheng Zhang

{"title":"Performance analysis of an AUV-aided NOMA-based vertical UWOC system with a cascaded WGG turbulence model.","authors":"Weihan Hao, Ping Wang, Weina Pang, Binna Zhou, Linsheng Zhang","doi":"10.1364/JOSAA.529599","DOIUrl":"https://doi.org/10.1364/JOSAA.529599","url":null,"abstract":"In this work, an autonomous underwater vehicles (AUVs) based downlink non-orthogonal multiple access (NOMA) vertical underwater wireless optical communication (UWOC) system has been investigated for the first time in detail, to the best of our knowledge. Specifically, assuming that the turbulence-induced fading over this vertical UWOC link is subject to Weibull generalized gamma (WGG) distribution, one N-layer composite cascaded statistical fading model is derived under the comprehensive impacts of oceanic turbulence, pointing errors, absorption, and scattering, in which each layer considers the vertically inhomogeneous nature of the underwater environment with different parameters. On the basis of this model, the analytical as well as asymptotic expression for outage probability is obtained in the form of Fox's H function, and the coverage probability and average achievable rate are derived for this UWOC system, which are all confirmed by Monte Carlo simulations. Moreover, the effects of the number of layers, water types, detection techniques, power allocation coefficient, pointing errors, and the residual power factor of imperfect successive interference cancellation are further analyzed on this system. This work would benefit the design and development of vertical UWOC systems.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"41 11","pages":"2112-2124"},"PeriodicalIF":1.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143070945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis on scattering and inner near-field characteristics of a uniaxial anisotropic sphere by an off-axis high-order Bessel (vortex) beam. 离轴高阶贝塞尔（涡）光束对单轴各向异性球的散射和内近场特性分析。

IF 1.4 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI: 10.1364/JOSAA.529144

Zheng Jun Li, Kai Yang, Tan Qu, Jing Bai, Qing Chao Shang

{"title":"Analysis on scattering and inner near-field characteristics of a uniaxial anisotropic sphere by an off-axis high-order Bessel (vortex) beam.","authors":"Zheng Jun Li, Kai Yang, Tan Qu, Jing Bai, Qing Chao Shang","doi":"10.1364/JOSAA.529144","DOIUrl":"https://doi.org/10.1364/JOSAA.529144","url":null,"abstract":"Based on the generalized Lorenz-Mie theory (GLMT) and the Fourier transform method, a theoretical approach is introduced to study the scattering of a uniaxial anisotropic sphere illuminated by an off-axis high-order Bessel (vortex) beam (HOBVB). According to the orthogonality of the associated Legendre function and exponential function, a concise expression of the expansion coefficients of the off-axis HOBVB in terms of the spherical vector wave functions (SVWFs) is derived that can effectively reconstruct the HOBVB with all conical angles. The differences of scattering characteristics of a uniaxial anisotropic sphere illuminated by an on-axis and off-axis HOBVB and a plane wave are exhibited. Influences of the topological charge, conical angle, particle size, and off-axis distance on the angle distributions of the radar cross-section (RCS), scattering and extinction efficiencies, and asymmetric factor are analyzed in detail. The unique internal and near-field distributions of a uniaxial anisotropic spherical particle illuminated by an on-axis and off-axis HOBVB are demonstrated. The results provide insights into the scattering and Bessel beam-matter interactions and may find important applications in optical propagation and optical micromanipulation, microwave engineering, target shielding, and near-field measurement.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"41 11","pages":"2054-2064"},"PeriodicalIF":1.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143070814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Angular momentum properties of a circularly polarized vortex beam in the paraxial optical systems. 近轴光学系统中圆偏振涡旋光束的角动量特性。

IF 1.4 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI: 10.1364/JOSAA.541429

Xiaojin Yin, Yu Li, Guoliang Jin, Jing Wang, Jinhong Liu, Jinhong Li

引用次数: 0

Criteria for objects suitable for reconstruction from holograms and diffraction patterns. 适用于全息图和衍射图重建的物体标准。

IF 1.4 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI: 10.1364/JOSAA.534332

Tatiana Latychevskaia

{"title":"Criteria for objects suitable for reconstruction from holograms and diffraction patterns.","authors":"Tatiana Latychevskaia","doi":"10.1364/JOSAA.534332","DOIUrl":"https://doi.org/10.1364/JOSAA.534332","url":null,"abstract":"In this study, quantitative criteria for reconstruction of objects from their hologram and diffraction patterns, and in particular for the phase objects in digital holography, are derived. The criteria that allow distinguishing the hologram and diffraction pattern are outlined. Gabor derived his criterion for objects suitable for holography based on the condition that the background in the reconstructed object's distribution should be nearly flat so that its intensity contrast does not exceed 0.05. According to Gabor, an opaque object is suitable for holographic reconstruction if it occupies no more than 1% of the imaged area, and a phase-shifting object cannot be reconstructed in principle. We revisit these criteria and show that both amplitude-only and phase-only objects can be reconstructed when the object occupies less than 1% of the total illuminated area. In addition, a simplified derivation of the criteria is provided that is based on Parseval's theorem. It is shown that for objects (including amplitude-only and phase-only) reconstructed from their holograms and the twin image treated as noise, a signal-to-noise ratio of 10 or higher can be achieved provided the object occupies less than 0.5% of the total illuminated area. When a hologram is reconstructed by applying iterative algorithms, the requirement for the object size is much more generous and identical to that applied in coherent diffraction imaging: any type of object (amplitude-only, phase-only, or amplitude-and-phase mixed properties) is suitable for holography when the object's size in each dimension is less than half of the probed region's extent (or the field of view).","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"41 11","pages":"2219-2230"},"PeriodicalIF":1.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143070897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Linearized wavefront sensing model for aberration retrieval from low-frequency Fourier coefficients. 低频傅里叶系数提取像差的线性化波前传感模型。

IF 1.4 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI: 10.1364/JOSAA.531449

Zhisheng Zhou, Jingang Zhang, Qiang Fu, Yunfeng Nie

引用次数: 0

Refractive blur's influence on discomfort glare perception from white LED headlights at night. 折射模糊对夜间白光LED大灯不适眩光感知的影响。

IF 1.4 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI: 10.1364/JOSAA.534837

Tatsuya Iizuka, Takushi Kawamorita, Hitoshi Ishikawa

引用次数: 0

SLIM-assisted automatic cartography of cell death types and rates resulting from localized photodynamic treatment. 由局部光动力处理导致的细胞死亡类型和速率的纤薄辅助自动制图。

IF 1.4 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI: 10.1364/JOSAA.534241

A V Belashov, A A Zhikhoreva, A V Salova, T N Belyaeva, I K Litvinov, E S Kornilova, I V Semenova

{"title":"SLIM-assisted automatic cartography of cell death types and rates resulting from localized photodynamic treatment.","authors":"A V Belashov, A A Zhikhoreva, A V Salova, T N Belyaeva, I K Litvinov, E S Kornilova, I V Semenova","doi":"10.1364/JOSAA.534241","DOIUrl":"10.1364/JOSAA.534241","url":null,"abstract":"We report a spatial light interference microscopy (SLIM)-based methodology aimed at automatic monitoring and analysis of changes in cellular morphology within extended fields of view in cytological samples. The experimental validation was performed on HeLa cells in vitro subjected to localized photodynamic treatment. The performed long-term noninvasive monitoring using the SLIM technique allowed us to estimate quantitative parameters characterizing the dynamics of average phase shift in individual cells and to reveal changes in their morphology specific for different mechanisms of cell death. The results obtained evidenced that the proposed SLIM-based methodology provides an opportunity for identification of cell death type and quantification of cell death rate in an automatic mode. The major sources of potential errors that can affect the results obtained are discussed. The developed methodology is promising for automatic monitoring of large ensembles of individual cells and for quantitative characterization of their response to various treatment modalities.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"41 11","pages":"C72-C81"},"PeriodicalIF":1.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143070964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acceptance criteria for contributions involving machine learning/artificial intelligence methods: editorial. 涉及机器学习/人工智能方法的投稿接受标准：编辑。

IF 1.4 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI: 10.1364/JOSAA.544226

Markus Testorf, Svetlana Avramov-Zamurovic, Olga Korotkova

引用次数: 0

Evolution of geometric phase and explaining the geodesic rule. 几何相位的演化与测地线规则的解释。

IF 1.4 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI: 10.1364/JOSAA.538106

Nathan Hagen, Luis Garza-Soto

引用次数: 0

Stokes-based analysis for the estimation of 3D dipolar emission. 基于stokes的三维偶极发射估计方法。