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

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Conical diffractions of multilayered gratings modeled by Cartesian rigorous coupled-wave analysis. 用笛卡尔严格耦合波分析方法模拟多层光栅的锥形衍射。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.499890
Jiexin Zhao, Xiaoqing Tian, Jiyong Wang
{"title":"Conical diffractions of multilayered gratings modeled by Cartesian rigorous coupled-wave analysis.","authors":"Jiexin Zhao,&nbsp;Xiaoqing Tian,&nbsp;Jiyong Wang","doi":"10.1364/JOSAA.499890","DOIUrl":"https://doi.org/10.1364/JOSAA.499890","url":null,"abstract":"<p><p>Rigorous coupled-wave analysis (RCWA) has become one of the most efficient electromagnetic solvers to cope with the diffractions of large-scale periodic nanostructures. Conventional RCWAs focus on planar diffractions and their iterative stabilities. Conical diffractions, as more general incidence cases, are paid little attention in developing their universal and stable implementations for multilayered gratings. Here, we reformulate RCWA algorithms step by step for conical diffractions in a global Cartesian coordinate system. By applying some mathematics tricks, it is found that boundary conditions in conical diffractions can be reduced to the same forms as that of planar diffractions. Conventional stable algorithms including enhanced transmittance matrices and scattering matrices can be directly implemented to attain robust diffraction efficiencies as well as electromagnetic fields for multilayered gratings. An exemplary application in diffractive-waveguide-based augmented reality verified our algorithms.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678920","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
Three-dimensional polarization effects in optical tunneling. 光学隧道中的三维偏振效应。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.499914
Mengwen Guo, Andreas Norrman, Ari T Friberg, Jose J Gil, Tero Setälä
{"title":"Three-dimensional polarization effects in optical tunneling.","authors":"Mengwen Guo,&nbsp;Andreas Norrman,&nbsp;Ari T Friberg,&nbsp;Jose J Gil,&nbsp;Tero Setälä","doi":"10.1364/JOSAA.499914","DOIUrl":"https://doi.org/10.1364/JOSAA.499914","url":null,"abstract":"<p><p>We consider the three-dimensional (3D) polarimetric properties of an evanescent optical field excited in the gap of a double-prism system by a random plane wave. The analysis covers the case of frustrated total internal reflection (FTIR), i.e., optical tunneling, and relies on the characteristic decomposition of the 3×3 polarization matrix. We find in particular that, for any incident partially polarized plane wave, the evanescent field inside the gap is necessarily in a nonregular, genuine 3D polarization state. We also show that the 3D polarimetric properties of the field at the second boundary are sensitive to the changes of the gap width and that the relevant effects occur for the smaller widths when the angle of incidence of the plane wave becomes larger. The results of this work uncover new aspects of the polarimetric structure of genuine 3D evanescent fields and may find applications in near-field optics and surface nanophotonics.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678933","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
Focusing characteristics of chirped phase-modulated Lorentz-Gaussian vortex beams. 啁啾相位调制洛伦兹-高斯涡旋光束的聚焦特性。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.500673
Shuo Li, Jinsong Li, Guojin Feng, Chenxu Lu
{"title":"Focusing characteristics of chirped phase-modulated Lorentz-Gaussian vortex beams.","authors":"Shuo Li,&nbsp;Jinsong Li,&nbsp;Guojin Feng,&nbsp;Chenxu Lu","doi":"10.1364/JOSAA.500673","DOIUrl":"https://doi.org/10.1364/JOSAA.500673","url":null,"abstract":"<p><p>This work presents a thorough investigation of the focusing characteristic of chirped phase modulated Lorentz-Gaussian (LG) vortex beams based on the vector diffraction theory. The results show that changing the first-order chirp parameter <i>c</i> <sub>1</sub> can effectively adjust the size of the focusing spot, and the distance between focusing spots can also be controlled. The second-order chirp parameter <i>c</i> <sub>2</sub> can control the up-and-down movement of the optical chain in the focusing region. Simultaneously, the length of the focusing spots can be accurately changed by modulating the waist width <i>ω</i>. In addition, the influence of integer topological charge number <i>m</i> on controlling the size of an optical dark trap is discussed in detail. And fractional topological charge number <i>m</i> can control the rotation of focus peak and the number of optical dark traps. Potential applications of these findings include optical shape and capture, optical particle transmission, and contemporary medical care.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678926","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
TOF-assisted binocular vision accuracy improvement method for underwater fish size inspection. TOF辅助双目视觉提高水下鱼群尺寸检测精度的方法。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.491830
Lixin Xiu, Xinning Yu, Hongguang Zhou, Lin Zhang, Shencheng Wu, Ying Liang, Yunfeng Bi
{"title":"TOF-assisted binocular vision accuracy improvement method for underwater fish size inspection.","authors":"Lixin Xiu,&nbsp;Xinning Yu,&nbsp;Hongguang Zhou,&nbsp;Lin Zhang,&nbsp;Shencheng Wu,&nbsp;Ying Liang,&nbsp;Yunfeng Bi","doi":"10.1364/JOSAA.491830","DOIUrl":"https://doi.org/10.1364/JOSAA.491830","url":null,"abstract":"<p><p>To address problems such as the lack of accuracy in acquiring depth maps for dynamic fish 3D measurements by usual binocular vision or a time-of-flight (TOF) depth camera, a TOF-assisted binocular vision depth acquisition algorithm is used to obtain high-quality depth maps. The TOF depth energy function is designed to guide the binocular stereo matching process, which improves the correct matching rate of binocular matching in low-texture regions; the TOF and binocular stereo matching confidence weighting functions are designed to achieve the fusion of the two at pixel level to improve the matching quality of fish in the occluded overlapping regions. The experimental results show that the TOF-assisted binocular vision system improves the accuracy of fish size measurement compared to single binocular vision while reducing the measurement error when the fish body has a significant inclination along the depth axis.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678934","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
UN-PUNet for phase unwrapping from a single uneven and noisy ESPI phase pattern. 用于从单个不均匀和有噪声的ESPI相位模式进行相位展开的UN PUNet。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.499453
Hongxuan He, Chen Tang, Liao Zhang, Min Xu, Zhenkun Lei
{"title":"UN-PUNet for phase unwrapping from a single uneven and noisy ESPI phase pattern.","authors":"Hongxuan He,&nbsp;Chen Tang,&nbsp;Liao Zhang,&nbsp;Min Xu,&nbsp;Zhenkun Lei","doi":"10.1364/JOSAA.499453","DOIUrl":"https://doi.org/10.1364/JOSAA.499453","url":null,"abstract":"<p><p>The wrapped phase patterns of objects with varying materials exhibit uneven gray values. Phase unwrapping is a tricky problem from a single wrapped phase pattern in electronic speckle pattern interferometry (ESPI) due to the gray unevenness and noise. In this paper, we propose a convolutional neural network (CNN) model named UN-PUNet for phase unwrapping from a single wrapped phase pattern with uneven grayscale and noise. UN-PUNet leverages the benefits of a dual-branch encoder structure, a multi-scale feature fusion structure, a convolutional block attention module, and skip connections. Additionally, we have created an abundant dataset for phase unwrapping with varying degrees of unevenness, fringe density, and noise levels. We also propose a mixed loss function MS_SSIM + L2. Employing the proposed dataset and loss function, we can successfully train the UN-PUNet, ultimately realizing effective and robust phase unwrapping from a single uneven and noisy wrapped phase pattern. We evaluate the performance of our method on both simulated and experimental ESPI wrapped phase patterns, comparing it with DLPU, VUR-Net, and PU-M-Net. The unwrapping performance is assessed quantitatively and qualitatively. Furthermore, we conduct ablation experiments to evaluate the impact of different loss functions and the attention module utilized in our method. The results demonstrate that our proposed method outperforms the compared methods, eliminating the need for pre-processing, post-processing procedures, and parameter fine-tuning. Moreover, our method effectively solves the phase unwrapping problem while preserving the structure and shape, eliminating speckle noise, and addressing uneven grayscale.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678936","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
Extended-depth-of-focus wavefront design from pseudo-umbilical space curves. 从伪脐空间曲线扩展焦深波前设计。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.501282
Sergio Barbero, Manuel Ritoré
{"title":"Extended-depth-of-focus wavefront design from pseudo-umbilical space curves.","authors":"Sergio Barbero,&nbsp;Manuel Ritoré","doi":"10.1364/JOSAA.501282","DOIUrl":"https://doi.org/10.1364/JOSAA.501282","url":null,"abstract":"<p><p>Designing extended-depth-of-focus wavefronts is required in multiple optical applications. Caustic location and structure analysis offer a powerful tool for designing such wavefronts. An intrinsic limitation of designing extended-depth-of-focus wavefronts is that any smooth surface, with a non-constant mean curvature, unavoidably introduces a separation between caustic sheets, which is proportional to the ratio of change of the mean curvature along a curve embedded in the wavefront. We present a method to obtain extended-depth-of-focus wavefronts where the mean curvature variation ratio is reduced thanks to using a long circle-involute space curve effectively filling the wavefront surface. Additionally, we present a variant of the method in which the wavefront is modified within a small tubular neighborhood of the circle involute in order to partially meet the umbilical condition along that tubular region. Finally, we provide some numerical results showing the potential of our method in an application example.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678925","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
Self-healing properties of symmetrical power-exponent-phase vortices. 对称幂指数相位涡旋的自愈特性。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.500772
Shuo Liu, Xuejuan Liu, Yan Xiong, Yiping Xu, Shaohua Tao, Wenxing Yang, Shubo Cheng
{"title":"Self-healing properties of symmetrical power-exponent-phase vortices.","authors":"Shuo Liu,&nbsp;Xuejuan Liu,&nbsp;Yan Xiong,&nbsp;Yiping Xu,&nbsp;Shaohua Tao,&nbsp;Wenxing Yang,&nbsp;Shubo Cheng","doi":"10.1364/JOSAA.500772","DOIUrl":"https://doi.org/10.1364/JOSAA.500772","url":null,"abstract":"<p><p>The self-healing properties of symmetrical power-exponent-phase vortices (SPEPVs) are analyzed in this paper. By placing an obstacle in the optical path of SPEPVs, we simulated the propagation of the obstructed SPEPVs and verified the self-healing of the beam theoretically. We also explored the influence of external factors (e.g., obstacle size and position) and internal parameters (topological charge <i>l</i> and power exponent <i>n</i>) on the self-healing effect of obstructed SPEPVs. Furthermore, the energy flow density, similarity coefficient, effective self-healing distance, and diffraction efficiency of the obstructed SPEPVs were also discussed. The results demonstrated that the transverse energy flows around the obstructed region of SPEPVs will recover with the propagation distance increased, and the effective self-healing distance gradually increases linearly with the obstacle size <i>r</i> <sub>x</sub> increased. The self-healing characteristic gives the petal-like SPEPVs the ability to trap microparticles three-dimensionally.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678932","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
Evolution properties of a complex coherent square Gaussian-Schell-model beam in a uniaxial crystal orthogonal to the optical axis. 正交于光轴的单轴晶体中复相干方高斯-谢尔模型光束的演化特性。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.500201
Jun Zhou, Huguang Li, Jianyang Zhou
{"title":"Evolution properties of a complex coherent square Gaussian-Schell-model beam in a uniaxial crystal orthogonal to the optical axis.","authors":"Jun Zhou,&nbsp;Huguang Li,&nbsp;Jianyang Zhou","doi":"10.1364/JOSAA.500201","DOIUrl":"https://doi.org/10.1364/JOSAA.500201","url":null,"abstract":"<p><p>The analytical formulas for spectral density, degree of coherence, and effective beam widths of complex coherent square Gaussian-Schell-model (GSM) beams in a uniaxial crystal orthogonal to the optical axis are derived. Based on these analytical formulas, the evolution properties are investigated by a set of numerical examples. It is demonstrated that the complex coherent square GSM beams spread at different rates in the directions parallel and orthogonal to the optical axis due to the anisotropic crystal, but the self-shift effect of the light field is almost unaffected by the fact that the uniaxial crystal is anisotropic. The effect of anisotropy of the uniaxial crystal on the effective width of the beam in the <i>x</i> direction and that in the <i>y</i> direction is completely opposite. The results provide a way for the modulation of the complex coherent square GSM beams and enrich the propagation theory of uniaxial crystal.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678924","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
Magnetization properties of radially polarized Bessel-Gaussian vortex beams with radial phase modulation in a 4π focusing system. 4π聚焦系统中径向相位调制径向偏振贝塞尔-高斯涡旋光束的磁化特性。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.500282
Chenxu Lu, Jinsong Li, Guojin Feng, Xiumin Gao
{"title":"Magnetization properties of radially polarized Bessel-Gaussian vortex beams with radial phase modulation in a 4π focusing system.","authors":"Chenxu Lu,&nbsp;Jinsong Li,&nbsp;Guojin Feng,&nbsp;Xiumin Gao","doi":"10.1364/JOSAA.500282","DOIUrl":"https://doi.org/10.1364/JOSAA.500282","url":null,"abstract":"<p><p>This paper explored the optically induced magnetization properties of radially polarized Bessel-Gaussian vortex beams with radial phase modulation in a 4<i>π</i> high numerical aperture (NA) focusing system, which is based on the vector diffraction theory and the inverse Faraday effect. The results show that in the case of radial modulation parameter <i>L</i>=0, one longitudinal magnetization chain with adjustable length can be obtained by modulating the truncation parameter <i>β</i>. When the radial modulation parameter <i>L</i>=1.3, two magnetization chains can be obtained by modulating the truncation parameter <i>β</i>. By modulating the radial modulation parameter <i>L</i>, two magnetization chains along the optical axis can be generated, each with four dark magnetic traps; meanwhile, the spacing between two magnetization chains can be adjusted. These results may be helpful in high-density all-optical magnetic recording, atom capture, and magnetic resonance microscopy.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678930","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
Modulation transfer function formula for different age ranges. 不同年龄段的调制传递函数公式。
IF 1.9 3区 物理与天体物理
Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2023-10-01 DOI: 10.1364/JOSAA.494721
Roberto F Sánchez, Francisco J Puertas, Luis A Issolio
{"title":"Modulation transfer function formula for different age ranges.","authors":"Roberto F Sánchez,&nbsp;Francisco J Puertas,&nbsp;Luis A Issolio","doi":"10.1364/JOSAA.494721","DOIUrl":"https://doi.org/10.1364/JOSAA.494721","url":null,"abstract":"<p><p>The modulation transfer function (MTF) is one of the most complete tools to study the optical performance of the eye. We present the average radial MTF profiles measured in 68 subjects grouped in six age ranges (from 20 to 80 years) and a general formula to estimate the radial profile of human MTF as a function of pupil size and age. The mean MTF for each age group was fitted to an analytical expression to compute two parameters related to aging. The proposed formula fitted reasonably well to experimental data available in previous works and predicted the average changes with aging of different optical quality parameters obtained from MTF.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49678931","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
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