Optical Review最新文献

Ground-based ultraviolet polarimetry for imaging the Babinet polarization neutral point 地基紫外偏振法成像巴比内特偏振中性点

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-05-15 DOI: 10.1007/s10043-025-00958-z

Clarissa M. DeLeon, Meredith Kupinski

{"title":"Ground-based ultraviolet polarimetry for imaging the Babinet polarization neutral point","authors":"Clarissa M. DeLeon, Meredith Kupinski","doi":"10.1007/s10043-025-00958-z","DOIUrl":"https://doi.org/10.1007/s10043-025-00958-z","url":null,"abstract":"Monitoring the polarization signature of the sky is valuable for navigation, meteorology, and remote sensing. However, the neutral points—Babinet (above the Sun), Brewster (below the Sun), Arago (above the anti-Sun), and the Fourth (below the anti-Sun)—remain underutilized as meteorological tools. The neutral points are formed through multiple scattering, making them useful markers for atmospheric turbidity, but further research is needed to understand their positional changes under varying conditions. This study presents the development of the Ultraviolet Linear Stokes Imaging Polarimeter (ULTRASIP), which operates at a center wavelength of 355 nm with a 10 nm bandpass and an instantaneous field of view of 7.2 arcseconds/pixel. A novel estimation technique to determine the position of the neutral point from linear Stokes images is applied to 10 h of observations. The true position of the neutral point is unknown, so the Babinet neutral point positions are reported with linear regression uncertainties. The position of the Babinet neutral point was found with azimuth uncertainties ranging from 2.52 to 21.96 arcseconds and altitude uncertainties ranging from 2.16 to 5.40 arcseconds. To the authors’ knowledge, these are the first images of the Babinet neutral point in an ultraviolet waveband. The development of ULTRASIP and neutral point position estimation technique will support future correlation studies between neutral point positions and atmospheric turbidity.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"43 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143979636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Adaptive cross-modal fusion for robust multi-modal object detection in infrared–visible imaging 红外可见成像中鲁棒多模态目标检测的自适应跨模态融合

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-05-11 DOI: 10.1007/s10043-025-00977-w

Xiangping Wu, Bingxuan Zhang, Wangjun Wan

{"title":"Adaptive cross-modal fusion for robust multi-modal object detection in infrared–visible imaging","authors":"Xiangping Wu, Bingxuan Zhang, Wangjun Wan","doi":"10.1007/s10043-025-00977-w","DOIUrl":"https://doi.org/10.1007/s10043-025-00977-w","url":null,"abstract":"Given the challenges faced by object detection methods that rely on visible light in complex environments, many researchers have begun to explore the combination of infrared and visible imaging for multi-modal detection. Existing results show that multi-modal fusion has proven effective for improving object detection outcomes. However, most current multi-modal detection methods rely on fixed-parameter feature fusion techniques, failing to account for the imaging differences across diverse environments and the complementary information between different modalities. In this paper, we propose a multi-modal object detection method based on adaptive weight fusion, utilizing the dual-stream framework to extract features from both modalities separately. We design a Cross-Modal Feature Interaction (CMFI) module to integrate global information across modalities and capture long-range dependencies. In addition, we introduce an Adaptive Modal Weight Calculation (AMWC) module, which fully accounts for the characteristics of different modalities in various environments and the complementarity among the modalities. This module dynamically adjusts the fusion weights within the CMFI module based on the input from different modalities. Moreover, a novel loss function is introduced to regulate the internal parameter adjustments of the AMWC module. We conduct extensive experiments on three representative datasets, using mAP@0.5 and mAP@0.5:0.95 as evaluation metrics. Our model achieved 79.1% and 40.6% on the FLIR dataset, 81.9% and 52.1% on M3FD, and 73.5% and 32.5% on KAIST.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"76 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143933592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Investigation of optical circular propagation in microfiber-based asymmetric Sagnac interferometer 基于微光纤的非对称Sagnac干涉仪中光圆传播研究

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-05-11 DOI: 10.1007/s10043-025-00975-y

Huibo Fan, Huili Fan, Li Fan, Haitao Chen

引用次数: 0

Robust NIR planar marker with occlusion resistance 具有抗遮挡的鲁棒近红外平面标记

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-05-10 DOI: 10.1007/s10043-025-00973-0

Yunxiao Chen, Weiqiang Zhang, Fan Yang, Ruihong Li, Dezhao Lin, Hongwei Chen

{"title":"Robust NIR planar marker with occlusion resistance","authors":"Yunxiao Chen, Weiqiang Zhang, Fan Yang, Ruihong Li, Dezhao Lin, Hongwei Chen","doi":"10.1007/s10043-025-00973-0","DOIUrl":"https://doi.org/10.1007/s10043-025-00973-0","url":null,"abstract":"Spherical markers are important in near-infrared (NIR) locators of orthopedic surgical robots. The spherical markers suffer from poor occlusion resistance due to occlusion by medical staff or blood contamination. Solutions to this challenge, such as adding markers or cameras, are limited by space and system complexity in the surgical environment. Compared with spherical markers, planar markers have better potential to enhance occlusion resistance due to their rich feature points. Current planar markers, which are designed for visible light locators in augmented reality (AR) applications, do not fulfill the dual requirements of occlusion resistance and miniaturization necessary for orthopedic surgical robots. Therefore, this paper will concentrate on the anti-occlusion of NIR small-size planar markers. The designed planar marker employs a checkerboard layout embedded in circular patterns to achieve orientation encoding, ID encoding, and redundant encoding mechanisms at the same time. A projective transformation with minimal representations of uncertain image points enhanced planar markers’ pose estimation. In translation and rotation experiments, the marker presented better results compared with two other planar marker systems: the classical ArUco and the advanced TopoTag. Moreover, the designed planar marker with redundant encoding can maintain pose estimation even with occlusion levels reaching up to 50%. Therefore, this paper offers a promising solution for enhancing the occlusion resistance of NIR planar markers.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"126 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Holographic Maxwellian display based on complex-valued convolutional neural network for optical see-through near-eye display applications 基于复值卷积神经网络的光学透明近眼显示全息麦克斯韦显示

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-05-09 DOI: 10.1007/s10043-025-00976-x

Yuhang Luo, Wenqiang Wan, Yunrui Wang, Jiahui Fu, Yanfeng Su

{"title":"Holographic Maxwellian display based on complex-valued convolutional neural network for optical see-through near-eye display applications","authors":"Yuhang Luo, Wenqiang Wan, Yunrui Wang, Jiahui Fu, Yanfeng Su","doi":"10.1007/s10043-025-00976-x","DOIUrl":"https://doi.org/10.1007/s10043-025-00976-x","url":null,"abstract":"The holographic Maxwellian display, as a promising technique, offers a potential solution to the vergence–accommodation conflict in see-through near-eye displays for augmented reality applications. However, traditional holographic Maxwellian displays primarily rely on iterative or non-iterative algorithms, which face the challenge of balancing image quality and computational efficiency. To address this issue, we propose a lensless phase-only holographic Maxwellian display based on a complex-valued convolutional neural network algorithm. The complex-valued convolutional approach captures both the phase and amplitude information of light waves, enriching the holographic details and significantly improving the quality of the reconstructed images. Simulation results demonstrate that the quality of the reconstructed image can be significantly enhanced while maintaining high computational efficiency compared to conventional algorithms. Furthermore, by multiplying the phase hologram with a convergent spherical wave at the hologram plane, the virtual target image is focused on the viewer's pupil, ensuring a consistent perception of all-in-focus images at the pupil's location. To expand the size of the eyebox, multiple digital spherical waves were employed in the holographic Maxwellian display. Finally, experimental results validate that our proposed near-eye display system successfully generates see-through virtual images, effectively eliminating the vergence–accommodation conflict. The demonstrated capabilities of the proposed method underscore its considerable potential for applications in holographic near-eye displays.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"35 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143926447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Integration of planar polarization management for advanced liquid crystal SLM devices 先进液晶SLM器件平面极化管理集成

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-30 DOI: 10.1007/s10043-025-00970-3

Qirui Zhang, Isaac Zachmann, Lianhua Ji, Chongchang Mao

引用次数: 0

Exploring ghost ray tracing in a massively parallel fast ray tracing within a cloud computing environment 在云计算环境中大规模并行快速光线追踪中探索鬼影光线追踪

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-26 DOI: 10.1007/s10043-025-00969-w

Hiroki Ono, Shigeru Matsumura, Zenta Ushiyama

引用次数: 0

Optical chaotic secure bidirectional communication based on optical injected electro-optical phase delay feedback loop 基于光注入电光相位延迟反馈回路的光混沌安全双向通信

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-25 DOI: 10.1007/s10043-025-00972-1

Fei Wang, Xuefang Zhou, Yuming Zhang, Jie Luo

{"title":"Optical chaotic secure bidirectional communication based on optical injected electro-optical phase delay feedback loop","authors":"Fei Wang, Xuefang Zhou, Yuming Zhang, Jie Luo","doi":"10.1007/s10043-025-00972-1","DOIUrl":"https://doi.org/10.1007/s10043-025-00972-1","url":null,"abstract":"To enhance chaotic complexity and conceal time-delay signatures, we propose an optically chaotic secure communication system. The system combines chaotic intensity signals from an amplified spontaneous emission (ASE) noise source with an electro-optical phase delay oscillating feedback loop through optical injection. It integrates all-optical intensity chaos and electro-optical feedback to produce complex chaotic signals. ASE noise acts as an entropy source, while a fiber Bragg grating (FBG) enhances signal complexity by leveraging its dispersion properties. This approach significantly expands the system’s key space. The transmitted information is nonlinearly coupled with the chaotic carrier via phase modulation, contributing to the chaotic carrier’s generation. At the receiver, optical chaotic synchronization decrypts the transmitted signals. Performance analysis shows that the system effectively hides time-delay signatures, increases chaotic complexity, and exhibits strong resistance to parameter mismatches. These results demonstrate its high security for physical-layer communication.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"42 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

High-response KTN crystal devices at the phase transition temperature for longitudinal and holographic electro-optic modulation 相变温度下用于纵向和全息电光调制的高响应 KTN 晶体器件

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-24 DOI: 10.1007/s10043-025-00964-1

Hiroto Sakai, Tsubasa Watanabe

{"title":"High-response KTN crystal devices at the phase transition temperature for longitudinal and holographic electro-optic modulation","authors":"Hiroto Sakai, Tsubasa Watanabe","doi":"10.1007/s10043-025-00964-1","DOIUrl":"https://doi.org/10.1007/s10043-025-00964-1","url":null,"abstract":"This study proposes a solid-state device that can be updated to high-response spatial light modulators. We demonstrate an electro-optic grating device based on the Kerr effect in potassium tantalate niobate (KTN) crystals that exhibit a relative dielectric constant exceeding 10,000. The time response in spatial light modulation can be enhanced by a quadratic electro-optic material with high permittivity. Its effectiveness may be affected by device specifications such as spatial resolution, temporal stability, and electrode-matching conditions on a specific surface. We conducted simulations using the finite element method to verify their effects, calculating the electric potential while applying voltage to the crystal. The field of light inside the crystal was computed sequentially according to the wave propagation equation and the potential. Fourier analysis of the light modulated in the simulations indicated that the spatial crosstalk in the grating pattern can primarily be attributed to the internal charge gradient. In the experiments, a transparent comb electrode was deposited on both sides of the KTN crystal to generate phase patterns of the grating in response to the voltage. After switching on the voltage using the function generator, the delay in the detection of light diffraction through the device and lens was measured. The frequency dependence of the measured capacitance was determined to be stable up to the cutoff frequency.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"23 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Digitally directed beams for microscale inspection 用于微尺度检测的数字定向光束

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-24 DOI: 10.1007/s10043-025-00965-0

Hiroshi Ohno

引用次数: 0