{"title":"Bessel beams with perfect properties.","authors":"Job Mendoza-Hernández","doi":"10.1364/JOSAA.557271","DOIUrl":"https://doi.org/10.1364/JOSAA.557271","url":null,"abstract":"<p><p>We show that Bessel beams can contain similar properties to perfect vortex beams in that the central ring radius and its width in these Bessel beams are quasi-constant with different orbital angular momentums. The relation between Bessel beams and Laguerre-Gauss (LG) beams allows the Bessel beams to have these perfect properties by merit of their connections between the radial wave component and their waist, while the LG beams have the perfect-LG beam parameters. Furthermore, the central ring radius in Bessel beams is compared with its corresponding rings in the perfect-LG beams and the perfect vortex beams. Since there is a relation between Bessel and LG beams in the paraxial approximation, we propose that these light beams can be experimentally generated with spatial light modulators, and they could have applications in optical communications.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"719-724"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821824","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}
{"title":"Defocus degradation of retinal images in the Maxwellian view.","authors":"Gerald Westheimer","doi":"10.1364/JOSAA.559298","DOIUrl":"https://doi.org/10.1364/JOSAA.559298","url":null,"abstract":"<p><p>In the Maxwellian view, the defocused retinal image is derived from two superimposed pupil wavefront components: the diffraction pattern that results when the source transilluminating a target is imaged in the eye's entrance pupil and the wavefront deviation associated with defocus. Since the diffraction pattern based on the target configuration will differ from case to case, there is no general theory of defocus degradation such as the optical transfer function in conventional retinal imagery. Nevertheless, depth of focus is always better in the Maxwellian view because the excitation in the wavefront does not fill the pupil fully and uniformly. The robustness to defocus image degradation is illustrated in several examples.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"C1-C5"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821827","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}
{"title":"Four-dimensional image formation theory of optical coherence tomography.","authors":"Naoki Fukutake, Shuichi Makita, Yoshiaki Yasuno","doi":"10.1364/JOSAA.557663","DOIUrl":"https://doi.org/10.1364/JOSAA.557663","url":null,"abstract":"<p><p>We construct an accurate imaging theory for optical coherence tomography/microscopy (OCT/OCM) without approximations to calculate precise optical resolution and imaging characteristics. Our theory represents a broadband light source using a four-dimensional (4D) pupil function with a dimension for light frequency (reciprocal of wavelength) as the fourth axis in 4D frequency space. Consequently, 4D space-time representation is required in real space, connected to the 4D frequency space by a 4D Fourier transform. Our theory provides insight into a peculiar image formation in OCT/OCM, particularly when an apparatus has a high numerical aperture (NA) optical system to handle aberrations and dispersions simultaneously.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"773-779"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821831","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}
Marlena Bobrowska, Piotr Tabor, Justyna Kiermasz, Elżbieta Olszewska, Jacek Pniewski
{"title":"Associations between vision parameters and postural alignment in children and their parents using video raster stereography: a preliminary analysis.","authors":"Marlena Bobrowska, Piotr Tabor, Justyna Kiermasz, Elżbieta Olszewska, Jacek Pniewski","doi":"10.1364/JOSAA.559675","DOIUrl":"https://doi.org/10.1364/JOSAA.559675","url":null,"abstract":"<p><p>This preliminary study examines how vision and body posture are related in children aged 7-11 and their parents. We included 31 children and 11 parents in this study. Vision was assessed through comprehensive eye exams, while posture was analyzed using the DIERS formetric 4D system based on video raster stereography. The results showed that children with astigmatism had more noticeable posture imbalances than those without. Higher levels of astigmatism in one direction were linked to side-to-side posture changes, while greater spherical refractive errors were associated with more pronounced spinal curves. Astigmatism in another direction was connected to less pronounced curves in the spine. These findings suggest that vision problems may affect posture and vice versa, highlighting the need for early vision screenings to detect potential postural issues.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"C13-C18"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821821","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}
Yefeng Shu, Jiasong Sun, Yao Fan, Yao Jin, Qian Chen, Chao Zuo
{"title":"Diagonal illumination scheme for Fourier ptychographic microscopy: resolution doubling and aliasing minimization: erratum.","authors":"Yefeng Shu, Jiasong Sun, Yao Fan, Yao Jin, Qian Chen, Chao Zuo","doi":"10.1364/JOSAA.561223","DOIUrl":"https://doi.org/10.1364/JOSAA.561223","url":null,"abstract":"<p><p>This erratum serves to acknowledge and correct the omission of two important references in J. Opt. Soc. Am. A41, C62 (2024).JOAOD60740-323210.1364/JOSAA.532252.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"763"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821830","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}
{"title":"Phase quasi-random squares spiral zone plates with single-focus diffraction.","authors":"Huakui Hu, Weifeng Wu, Huajie Xu, Guoping Shi, Jiangtao Ding, Hailiang Li","doi":"10.1364/JOSAA.562808","DOIUrl":"https://doi.org/10.1364/JOSAA.562808","url":null,"abstract":"<p><p>Due to the existence of orbital angular momentum, an optical vortex generated from spiral zone plates is an important approach for studying physics and detecting matter. However, the unneeded high-order diffraction inherent in traditional spiral zone plates will add background noise, leading to complication in subsequent analysis. In this paper, a single-focus spiral zone plate with an approximately sinusoidal transmittance, called phase quasi-random squares spiral zone plates (PQRSZPs), is designed. The key idea of the PQRSZPs is to transform the three-dimensional sinusoidal structure of the sinusoidal spiral zone plates into a three-dimensional square structure with a phase difference of 2<i>π</i>, making it easy to fabricate. Theoretical analysis and experimental results confirm that the PQRSZPs can effectively remove high-order diffraction and increase the diffraction intensity of the wanted order. Moreover, the helical phase structure with multiple topological charges of the output beams is also demonstrated. Due to this unique property, there are widespread applications in astrophysics and imaging.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"834-841"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821837","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}
{"title":"Predicting visual field boundaries from head features.","authors":"Uday Nakade, Manuel Spitschan","doi":"10.1364/JOSAA.551858","DOIUrl":"10.1364/JOSAA.551858","url":null,"abstract":"<p><p>Light exposure profoundly affects human physiology, including circadian rhythms and hormonal regulation. Current methods to assess light exposure often ignore anatomical factors that influence how much light reaches the retina. This study introduces a novel simulation pipeline to model visual field (VF) boundaries as a function of head anatomy. Using the parametric ICT Face Model and the Mitsuba 3 rendering engine, we generated diverse 3D head shapes and simulated light interactions to predict VF boundaries. The results reveal significant variability in VF boundaries, influenced by anatomical features such as the nose, cheeks, and eyebrows. This leads to differences in projected solid angles of the VF of up to 18.7%. This study highlights the importance of individual approaches in estimating light exposure.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"C19-C26"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12310551/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuda Chen, Changhe Zhou, Yihan Wang, Wei Jia, Jin Wang
{"title":"Analytical equations for the three diffraction orders of a fused silica grating at the second Bragg incidence.","authors":"Yuda Chen, Changhe Zhou, Yihan Wang, Wei Jia, Jin Wang","doi":"10.1364/JOSAA.555272","DOIUrl":"https://doi.org/10.1364/JOSAA.555272","url":null,"abstract":"<p><p>The physical analytical equation is always a pursuit of designing a grating for applications. We presented analytical equations to describe the diffraction process of a deep-etched fused silica grating under the second Bragg incidence by using the simplified modal method, particularly in a special case where the effective refractive index of mode 1 might be equal to mode 2. We found that the joint effect of modes 1 and 2 has no effect on the diffraction efficiency for the 0th order and the -2nd order. The efficiency fluctuates slightly as the grating depth increases. In the context of this situation, we discovered that the modes 0, 1, and 2 influenced the diffraction process together. We derived the analytical diffraction efficiency equations of three orders, with different grating depths <i>h</i> and corresponding diffraction efficiencies to match the coefficient values of efficiency equations. The comparison between these analytical equations and RCWA matches well with the vast majority of the difference between them that are less than 4% for both TE and TM polarizations, which proves the viability of these analytical equations. These analytical equations illustrate a clear physical picture of three modes' contributions under the second Bragg incidence. These analytical equations derived from the simplified modal method could help us understand the physics theory of gratings in general and the design of fused silica gratings for practical applications.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"764-771"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821820","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}
Daniil V Soshnikov, Leonid L Doskolovich, Georgy A Motz, Egor V Byzov, Evgeni A Bezus, Dmitry A Bykov, Nikolay L Kazanskiy
{"title":"Designing robust diffractive neural networks with improved transverse shift tolerance.","authors":"Daniil V Soshnikov, Leonid L Doskolovich, Georgy A Motz, Egor V Byzov, Evgeni A Bezus, Dmitry A Bykov, Nikolay L Kazanskiy","doi":"10.1364/JOSAA.561906","DOIUrl":"https://doi.org/10.1364/JOSAA.561906","url":null,"abstract":"<p><p>We propose a method for the design of diffractive neural networks (DNNs) for image classification, which takes into account the positioning errors (transverse shifts) of phase diffractive optical elements (DOEs) constituting the DNN. In this method, the error in solving the classification problem is represented by a functional depending on the phase functions of the DOEs and on random vectors describing the transverse shifts of the DOEs. The mathematical expectation of this functional is used as an error functional in the gradient method for calculating the DNN taking into account the transverse shifts of the DOEs. Explicit expressions are obtained for the derivatives of the error functional. It is shown that the calculation of the derivatives of this functional using the Monte Carlo method corresponds to the DNN training method, in which the DOEs have random transverse shifts. By using the proposed gradient method, DNNs are designed that are robust to transverse shifts of the DOEs and enable solving the problem of classifying handwritten digits at a visible wavelength. Numerical simulations demonstrate good performance of the designed DNNs at transverse shifts of up to 17 wavelengths.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"699-709"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821829","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}
Eugeny G Abramochkin, Victor V Kotlyar, Alexey A Kovalev
{"title":"Helical Ince-Gaussian laser beams as superpositions of Hermite-Gaussian beams.","authors":"Eugeny G Abramochkin, Victor V Kotlyar, Alexey A Kovalev","doi":"10.1364/JOSAA.558038","DOIUrl":"https://doi.org/10.1364/JOSAA.558038","url":null,"abstract":"<p><p>In this work, we theoretically and numerically analyze helical Ince-Gaussian (hIG) modes, <i>h</i><i>I</i><i>G</i><sub><i>p</i>,<i>q</i></sub>(<i>x</i>,<i>y</i>,<i>ε</i>). We derive explicit analytical relationships to describe the <i>ε</i>-dependence (where <i>ε</i> is the ellipticity parameter) of the orbital angular momentum (OAM) of <i>h</i><i>I</i><i>G</i><sub><i>p</i>,<i>q</i></sub>(<i>x</i>,<i>y</i>,<i>ε</i>) modes at <i>p</i>=2,3,4,5. The derivation procedure relies on expansions of the hIG modes in terms of Hermite-Gaussian modes. It is shown that in the general case, the OAM is an even function of <i>ε</i> and exhibits no monotonic behavior with <i>ε</i> varying from zero to plus and minus infinity.</p>","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"42 6","pages":"780-787"},"PeriodicalIF":1.5,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821832","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}