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

Manufacturable blazed metasurface gratings designed by a 3D topology optimization model. 采用三维拓扑优化模型设计了可制造的烧蚀超表面光栅。

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 : 2026-09-01 DOI: 10.1364/JOSAA.601840

Simon Ans, Frédéric Zamkotsian, Guillaume Demésy

{"title":"Manufacturable blazed metasurface gratings designed by a 3D topology optimization model.","authors":"Simon Ans, Frédéric Zamkotsian, Guillaume Demésy","doi":"10.1364/JOSAA.601840","DOIUrl":"https://doi.org/10.1364/JOSAA.601840","url":null,"abstract":"We present an open-source finite element method-based topology optimization framework for 3D blazed metasurfaces operating in reflection over the [400-1500] nm visible and near-infrared range. The design region is described through a density-based interpolation and optimized using the adjoint method, enabling the treatment of several tens of thousands of degrees of freedom. A first approach directly applies topology optimization to the 3D finite element mesh (mesh-based), yielding a freeform structure that achieves an average diffraction efficiency of 62% in the -1st order over two octaves under the targeted incidence. However, the freeform patterns obtained remain difficult to manufacture. We therefore introduce a pillar-based parameterization, embedding fabrication constraints within the optimization loop. The resulting binary metasurface, compatible with e-beam lithography and reactive ion etching techniques, achieves an average efficiency of 57% over the same spectral band in p-polarization, with low polarization dependence. This work demonstrates that large-scale 3D topology optimization can bridge the gap between broadband optical performance and realistic nanofabrication constraints for blazed metasurfaces.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 9","pages":"1435-1445"},"PeriodicalIF":1.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149168099","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

Coherence requirements for multislice coherent imaging of large specimens. 大样本多层相干成像的相干性要求。

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 : 2026-09-01 DOI: 10.1364/JOSAA.605889

Mauricio Angelone, Stephan O Hruszkewycz, Chris Jacobsen

{"title":"Coherence requirements for multislice coherent imaging of large specimens.","authors":"Mauricio Angelone, Stephan O Hruszkewycz, Chris Jacobsen","doi":"10.1364/JOSAA.605889","DOIUrl":"https://doi.org/10.1364/JOSAA.605889","url":null,"abstract":"Coherent X-ray imaging methods such as ptychography and holography can provide 3D images of millimeter-thick specimens at nanoscale resolution when combined with multislice reconstruction methods, which account for wavefield propagation through the full sample depth rather than using a simple projection of optical effects along the illumination direction. Here, we derive the transverse and longitudinal coherence requirements for multislice imaging, based on the illumination wavelength λ, sample thickness t, and the target spatial resolution δr. The sample can be larger than either the coherence width or length, and the required coherence lengths can be achieved using either multilayer or crystal monochromators depending on thickness t. When considering our findings in the context of tomography, we find that the number of rotation angles required for full angular sampling depends on resolution δr and wavelength λ, but not on sample thickness t. These results confirm the feasibility of providing sufficient coherence for 3D X-ray imaging of samples that are much thicker than the normal depth-of-focus limit.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 9","pages":"1321-1328"},"PeriodicalIF":1.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149170149","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

Fabrication and in vitro optical characterization of a diffractive trifocal intraocular lens with step heights modulated by a cosine function. 用余弦函数调制阶跃高度的衍射三焦人工晶状体的制备和体外光学特性。

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 : 2026-09-01 DOI: 10.1364/JOSAA.606130

Luiz Melk de Carvalho, Davies William de Lima Monteiro, Bruno Lovaglio Cançado Trindade

引用次数: 0

LightGuard: shedding light on copyright protection for relightable Gaussian splatting. LightGuard：对可光高斯喷溅的版权保护有所启发。

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 : 2026-09-01 DOI: 10.1364/JOSAA.600452

Xuanning Cui, Qi Song, Ziyuan Luo, Xiufeng Huang, Renjie Wan, Huizhu Jia, Boxin Shi

引用次数: 0

Energy flow control of focused vector Bessel-Gaussian beams based on polarization-phase mixed modulation. 基于偏振相位混合调制的聚焦矢量贝塞尔-高斯光束能量流控制。

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 : 2026-08-01 DOI: 10.1364/JOSAA.604192

Juntao Peng, Jinsong Li, Hao Wang, Yuqian Li

引用次数: 0

PDMS lens for a fiber probe for detecting low-intensity fluorescence signals from advanced glycation endproducts. 用于检测晚期糖基化终产物的低强度荧光信号的光纤探针的PDMS透镜。

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 : 2026-08-01 DOI: 10.1364/JOSAA.590410

P Sai Shruti Rao, Pradeep Kumar Krishnamurthy

{"title":"PDMS lens for a fiber probe for detecting low-intensity fluorescence signals from advanced glycation endproducts.","authors":"P Sai Shruti Rao, Pradeep Kumar Krishnamurthy","doi":"10.1364/JOSAA.590410","DOIUrl":"https://doi.org/10.1364/JOSAA.590410","url":null,"abstract":"Fluorescence-based biomedical diagnostics such as cancers and advanced glycation endproducts (AGEs) face important challenges, primarily the weak fluorescence emission and optical attenuation in highly scattering and absorbing biological tissues. We aim to develop an attachable polydimethylsiloxane (PDMS) lens for an optical fiber probe that can detect low-intensity collagen-linked fluorescence (CLF) due to the AGE formation, despite high melanin concentration, and provide a non-invasive AGE detection system irrespective of skin color. We employed a Y-shaped multimode fiber-optic (MMFO) probe-based fluorescence spectroscopy for the detection of AGEs. We fabricated the PDMS-based plano-convex milli-lens for the MMFO probe using a hanging droplet technique and characterized for numerical aperture to maximize light collection. Skin mimicking phantoms containing AGEs, NADH, FAD, and varying concentrations of melanin (100-400 µM) were prepared. The PDMS lens-assisted fiber probe was used to measure the CLF spectrum (440-560 nm) from phantoms at an excitation of 405 nm. The phantom-based studies revealed that increasing concentration of melanin made the acquisition of CLF spectra difficult. The lens-assisted fluorescence measurement from these phantoms resulted in significant improvement in the collection of CLF spectra. The collection of the CLF signals with lens improved by 200%. The peak prominence of the CLF spectrum improved from 1 to 6.4.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 8","pages":"D19-D26"},"PeriodicalIF":1.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149164968","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

Paraxial spin-orbit beams of light-a perspective [Invited]. 近轴自旋轨道光束——一个视角[特邀]。

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 : 2026-08-01 DOI: 10.1364/JOSAA.596270

Nirmal K Viswanathan, Upasana Baishya, Nitish Kumar, Dileep Kumar Upadhyay, A Harish Kumar

{"title":"Paraxial spin-orbit beams of light-a perspective [Invited].","authors":"Nirmal K Viswanathan, Upasana Baishya, Nitish Kumar, Dileep Kumar Upadhyay, A Harish Kumar","doi":"10.1364/JOSAA.596270","DOIUrl":"https://doi.org/10.1364/JOSAA.596270","url":null,"abstract":"This paper provides a perspective on paraxial spin-orbit laser beams with a nonuniform phase-polarization structure embedded with C-point and L-line polarization singularities and surrounding lemon, star, and monstar polarization topologies. The spin and orbital angular momenta of the light beam are manipulated independently or together to produce spin-orbit light beams with these polarization features. Paraxial spin-orbit beams with topological features are generated using readily available optical components, including, as demonstrated in our group, reflection at a single and multilayer dielectric interface, propagation through an optical fiber, an optical crystal, a GRIN rod, and in two- and three-beam interferometers. Compared with uniformly polarized laser beams, spin-orbit beams offer significant experimental advantages, enabling sensitive, novel (to our knowledge) approaches to measure weak anisotropy effects in dielectric and magneto-optic media, as well as in microscopy and metrology. The generation of spin-orbit beams using off-the-shelf optical components is expected to accelerate their development and use, further enriching this emerging area of optics research.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 8","pages":"D119-D140"},"PeriodicalIF":1.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149166750","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

Minimum number of components required for the structural design of a multicomponent two-conjugate lens system. 多组分双共轭透镜系统结构设计所需的最小元件数。

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 : 2026-08-01 DOI: 10.1364/JOSAA.592700

Lakshminarayan Hazra

引用次数: 0

Comparative study of aperture-induced aberrations in reflective and transmissive optical spectrometers using ZEMAX. 利用ZEMAX对反射和透射光谱仪孔径诱导像差的比较研究。

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 : 2026-08-01 DOI: 10.1364/JOSAA.604734

Muddasir Naeem, Tayyab Imran

{"title":"Comparative study of aperture-induced aberrations in reflective and transmissive optical spectrometers using ZEMAX.","authors":"Muddasir Naeem, Tayyab Imran","doi":"10.1364/JOSAA.604734","DOIUrl":"https://doi.org/10.1364/JOSAA.604734","url":null,"abstract":"This study presents a design-level comparison of aperture-induced imaging degradation in reflective and transmissive optical spectrometers using ZEMAX OpticStudio. Two representative grating-based spectrometer configurations were modeled and evaluated under identical input-aperture, wavelength, detector, and grating-order conditions while varying the entrance pinhole diameter from 5 to 100 µm. The optical response was assessed using complementary image-quality metrics, including geometric, Huygens, and diffraction modulation transfer functions, line spread function, edge spread function, FFT-derived spread functions, and detector-plane irradiance. The results show that increasing the input pinhole size systematically reduces modulation transfer, broadens the line and edge responses, and redistributes optical energy over a larger detector region, indicating a transition from an optics-limited response at small apertures to a source-size-limited response at larger apertures. Within the specific optical prescriptions considered here, the reflective configuration preserved modulation, edge sharpness, and detector-plane energy confinement more effectively than the simple singlet-lens transmissive configuration. The study establishes a direct design connection between entrance-aperture size, spatial-frequency response, spread-function broadening, and detector-plane energy confinement, providing practical guidance for compact spectrometer designs where resolution, throughput, and aberration tolerance must be balanced.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 8","pages":"1272-1283"},"PeriodicalIF":1.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149169727","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

Radial Hilbert derivative-based total variation penalty for image reconstruction. 基于径向希尔伯特导数的图像重建总变差惩罚。

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 : 2026-08-01 DOI: 10.1364/JOSAA.584241

Muskan Kularia, Manidipa Banerjee, Kedar Khare

{"title":"Radial Hilbert derivative-based total variation penalty for image reconstruction.","authors":"Muskan Kularia, Manidipa Banerjee, Kedar Khare","doi":"10.1364/JOSAA.584241","DOIUrl":"https://doi.org/10.1364/JOSAA.584241","url":null,"abstract":"Gradient-based penalties such as total variation (TV) and its variants are popular in computational imaging literature due to their simultaneous noise suppression and edge preservation properties. The functional (or Euler-Lagrange) derivatives of these penalty functions involve a combination of gradient and divergence operations that are typically evaluated using the finite difference approximation along the row and column directions of the image matrix. Repeated evaluation of functional derivatives as required in iterative image reconstruction algorithms can cause faint grid-like artifacts, and the Fourier spectrum of the reconstructed image is observed to develop spurious energy bands. We propose a TV-like penalty using the Laguerre-Gaussian radial Hilbert transform, which is known to provide isotropic edge enhancement. The functional derivative of this penalty function does not have a simple analytical form but can be evaluated using the readily available automatic differentiation tools. Numerical illustrations for image denoising and deconvolution using the proposed penalty function with gradient descent-type iterations show that the reconstructed images retain their natural texture, and their Fourier spectrum does not show undesirable structures. The proposed penalty function is simple to implement and can be used generically in computational imaging algorithms. Furthermore, we demonstrate that the proposed approach is not limited just to the TV penalty and can be systematically extended to a broader class of gradient-based regularizers.","PeriodicalId":17382,"journal":{"name":"Journal of The Optical Society of America A-optics Image Science and Vision","volume":"43 8","pages":"D50-D63"},"PeriodicalIF":1.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149167182","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