Journal of The Optical Society of America A-optics Image Science and Vision最新文献_第10页

Considerations for calibration of Stokes polarimeters. 斯托克斯偏振计校准的注意事项。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.598948

A G De Wijn, D Harrington, R Casini

{"title":"Considerations for calibration of Stokes polarimeters.","authors":"A G De Wijn, D Harrington, R Casini","doi":"10.1364/JOSAA.598948","DOIUrl":"https://doi.org/10.1364/JOSAA.598948","url":null,"abstract":"We introduce a framework for evaluating the performance of polarimetric calibration schemes for Stokes polarimeters. Extending the modulation-efficiency formalism of del Toro Iniesta and Collados [Appl. Opt.39, 1637 (2000)10.1364/AO.39.001637], we define an analogous calibration efficiency that relates uncertainties in measurements to errors in inferred modulation matrices. This framework enables direct comparison of calibration strategies and provides a metric for optimizing calibration sequences for a desired accuracy and execution time. We analyze the behavior of typical calibration optics, including linear and elliptical retarders, depolarizing elements, and imperfect polarizers, and identify the conditions under which degeneracies arise in the calibration model. Our results show that all calibration parameters except for global rotation gauges and intensity scaling remain recoverable when the calibration polarizer can be assumed to be perfect. Continuous degeneracies appear if the calibration polarizer deviates from ideal behavior. We discuss how increasing realism expands the dimensionality of the calibration model and argue the need for good initial parameter estimates to ensure convergence of fits. The formalism developed here supports a systems-engineering approach to polarimetry, enabling error budgeting, design optimization, and assessment of calibration efficiency for current and future polarimetric instrumentation.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 7","pages":"1096-1104"},"PeriodicalIF":1.5,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149170044","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

Honoring Akira Ishimaru's contributions to waves in random media: editorial. 表彰石丸明在随机媒体中对波浪的贡献：社论。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.599356

Arnold D Kim

引用次数: 0

Neuromorphic cameras as event-driven scintillometers for boundary-layer turbulence characterization. 神经形态相机作为事件驱动的闪烁仪用于边界层湍流表征。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.600354

Pablo Garrido, Marco Sepúlveda, Esteban González, Darío G Pérez

{"title":"Neuromorphic cameras as event-driven scintillometers for boundary-layer turbulence characterization.","authors":"Pablo Garrido, Marco Sepúlveda, Esteban González, Darío G Pérez","doi":"10.1364/JOSAA.600354","DOIUrl":"https://doi.org/10.1364/JOSAA.600354","url":null,"abstract":"Image-plane scintillation concentrates at high-contrast boundaries, where turbulence-induced wavefront distortions are amplified by local intensity gradients-precisely where neuromorphic event cameras are most sensitive. We exploit this physical correspondence to estimate the refractive-index structure constant Cn2 over near-ground horizontal paths (∼200-300m) without an active transmitter, a co-located scintillometer, or a trained regression model. Relative irradiance sequences reconstructed by event-only temporal integration yield pixel-wise scintillation indices that are inverted through a spherical-wave model. Four field campaigns spanning two seasons and daytime through nighttime regimes, validated against a sonic anemometer, confirm hourly agreement within a factor of 1.2-4× under well-illuminated conditions. Mechanical vibration from wind loading and insufficient scene contrast are the limiting conditions, pointing toward mount stabilization and active target illumination for continuous 24 h operation.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 7","pages":"C45-C51"},"PeriodicalIF":1.5,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149167758","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

Subcarrier M-PAM using vortex Gaussian beams for aeronautical FSO links in weak non-Kolmogorov turbulence. 在弱非柯尔莫哥洛夫湍流中使用涡高斯波束的M-PAM子载波航空FSO链路。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.596048

Hamza Gerçekcioğlu

{"title":"Subcarrier M-PAM using vortex Gaussian beams for aeronautical FSO links in weak non-Kolmogorov turbulence.","authors":"Hamza Gerçekcioğlu","doi":"10.1364/JOSAA.596048","DOIUrl":"https://doi.org/10.1364/JOSAA.596048","url":null,"abstract":"By employing the Rytov method, the off-axis scintillation index for vortex Gaussian beams is analytically derived for atmospheric vertical links in weak non-Kolmogorov turbulence channels. Using the off-axis scintillation index together with the log-normal distribution, the performance of this beam, both in terms of the off-axis scintillation index and the average bit error rate (⟨BER⟩) of subcarrier M-pulse amplitude modulation (M-PAM), is investigated and evaluated for aeronautical vehicle laser communication uplinks and downlinks. The ⟨BER⟩ performance of the subcarrier M-PAM, defined as the symbol error probability, is expressed through the performance metrics of laser communication systems. The off-axis scintillation index obtained from the plots as a function of source size and propagation distance is used to illustrate the ⟨BER⟩ performance of the subcarrier. The results show that, when comparing vortex Gaussian beams with non-vortex Gaussian beams, the vortex beam is more affected during upward propagation and less affected during downward propagation. Furthermore, the vortex Gaussian beam exhibits significant advantages in vertical links as the topological charge increases, particularly in its ability to tolerate differences between Kolmogorov and non-Kolmogorov turbulence conditions affecting the beam models.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 7","pages":"1075-1083"},"PeriodicalIF":1.5,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149166281","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

Numerical stability and efficiency in Zernike fitting for non-standard circular apertures. 非标准圆孔Zernike拟合的数值稳定性和效率。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.601210

Churui Li, Gongjian Guo, Xiang Hao

{"title":"Numerical stability and efficiency in Zernike fitting for non-standard circular apertures.","authors":"Churui Li, Gongjian Guo, Xiang Hao","doi":"10.1364/JOSAA.601210","DOIUrl":"https://doi.org/10.1364/JOSAA.601210","url":null,"abstract":"Retrieving standard circular Zernike coefficients from wavefronts measured over non-standard circular apertures is crucial for modern optical engineering. While direct least-squares fitting and the orthogonal transformation method are commonly used, a systematic comparison of their numerical stability, computational costs, and noise robustness remains lacking. In this paper, we present a comparative study of five established algorithms [least-squares, Gram-Schmidt, Cholesky factorization, QR factorization, and singular value decomposition (SVD)], introduce two short-recurrence variants to investigate the computational speed limits of recursive orthogonalization, and rigorously prove their mathematical equivalence under exact arithmetic and characterize how floating-point errors cause this equivalence to break down differently across methods. However, simulations on annular and eccentric apertures reveal that although all methods are reliable under well-conditioned masks, least-squares and Cholesky suffer precision loss and numerical collapse under ill-conditioned apertures. Furthermore, non-regularized methods suffer from noise amplification, making truncated SVD the most reliable method among those evaluated for retrieving physically meaningful coefficients. Based on these findings, we provide a practical guide for algorithm selection in optical engineering, helping researchers choose appropriate methods based on their specific measurement conditions.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 7","pages":"1053-1066"},"PeriodicalIF":1.5,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149170168","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

Image blur due to forward scattering from atmospheric aerosols: retrospective. 大气气溶胶前向散射造成的图像模糊：回顾。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.605882

Natan S Kopeika, Arkadi Zilberman

引用次数: 0

Correlated phase screens for beams in extreme turbulence. 极端湍流中光束的相关相位屏。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.589339

Liliana Borcea, Josselin Garnier, Knut Sølna

引用次数: 0

Optimal polarization modulation and calibration schemes. 最优偏振调制和校准方案。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.598937

R Casini, D M Harrington, A G de Wijn

引用次数: 0

Wiener phase-shifting algorithms for maximum signal-to-noise ratio phase demodulation. 最大信噪比相位解调的维纳移相算法。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.595977

Manuel Servin

{"title":"Wiener phase-shifting algorithms for maximum signal-to-noise ratio phase demodulation.","authors":"Manuel Servin","doi":"10.1364/JOSAA.595977","DOIUrl":"https://doi.org/10.1364/JOSAA.595977","url":null,"abstract":"In this work, we introduce a new class, to our knowledge, of temporal phase-shifting algorithms (PSAs), called Wiener PSAs (WPSAs). These algorithms combine the optimal Wiener least-squares noise-reduction criterion with the spectral constraints required for any valid PSA in phase-shifting interferometry. Importantly, WPSAs are not just a straightforward extension of the Wiener filter; rather, they constitute an entirely new class of quadrature filters that share with Wiener filtering only the principle of optimal mean-square error minimization. Unlike the conventional Wiener filter design, WPSAs incorporate, via Lagrange multipliers, explicit frequency transfer function (FTF) quadrature conditions: full suppression of the DC and the conjugate signals at frequencies ω∈[-ω0,0], while keeping the desired quadrature at ω=+ω0. The WPSA synthesis yields a complex quadrature filter that minimizes output noise power while guaranteeing exact phase demodulation from temporal fringes corrupted by additive white Gaussian noise (AWGN). The resulting WPSAs achieve the highest attainable signal-to-noise ratio (SNR) for any given number of interferograms N and phase-step ω0, even when the standard least-squares condition ω0=2π/N is not satisfied. Practical examples with common phase-step values confirm that WPSAs consistently outperform existing PSAs in noise robustness. This work not only extends the optimal Wiener criterion to quadrature filtering but also highlights the essential role of the FTF formalism in formulating and solving quadrature-constrained optimization problems for high-precision, low-noise phase retrieval.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 7","pages":"1067-1074"},"PeriodicalIF":1.5,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149167989","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

Generating multi-wavelength phase screens for atmospheric wave optics simulations using fast Fourier transforms. 利用快速傅立叶变换为大气波光学模拟生成多波长相位屏。

IF 1.5 3区物理与天体物理

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2026-07-01 DOI: 10.1364/JOSAA.586510

Milo W Hyde, Mark F Spencer, Matt Kalensky

引用次数: 0