Optics express最新文献_第9页

Efficient parallel relaying FSO communications using rateless codes in horizontal terrestrial and satellite-to-ground scenarios. 在水平地面和卫星对地场景中使用无速率码的高效并行中继FSO通信。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.570980

Beibei Cui, Shanyong Cai, Liqian Wang, Zhiguo Zhang

引用次数: 0

Quantitative analysis of backscattering contamination sources in the TianQin telescope. 天琴望远镜后向散射污染源的定量分析。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.570389

Xinxin Liu, Zizheng Li, Yiping Wang, Tianxiang Lv, Jingxiao Peng, Shanxiang Liang, Xin Zhang

引用次数: 0

Enhancing the energy utilization efficiency of broadband emission from organic molecules using narrowband photonic-crystal nanocavity modes. 利用窄带光子晶体纳米腔模式提高有机分子宽带发射的能量利用效率。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.568958

Nishiki Yamada, Takashi Asano, Keiji Sugi, Ryo Kasegawa, Yasutoshi Jimbo, Yoshiaki Kouyama, Hironori Toyoda, Tatsuya Ichikawa, Tetsuo Minami, Bong-Shik Song, Kenji Ishizaki, Susumu Noda

引用次数: 0

Generalized Jones-Mueller calculus for optical anisotropic media. 光学各向异性介质的广义Jones-Mueller微积分。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.565077

Luo Wang, Mingjie Xiao, Haiyang Zhang, Changming Zhao

{"title":"Generalized Jones-Mueller calculus for optical anisotropic media.","authors":"Luo Wang, Mingjie Xiao, Haiyang Zhang, Changming Zhao","doi":"10.1364/OE.565077","DOIUrl":"https://doi.org/10.1364/OE.565077","url":null,"abstract":"3-D matrix calculus plays a critical role in describing 3-D polarized transformations. However, existing two 3-D calculi, generalized Jones and Mueller matrix calculus (GJM and GMM), remain flawed and incomplete. First, the global connection between two matrices has not been theoretically explored and established, which results in their independence and inability to form a unified framework (similar to 2-D Jones-Mueller framework). Second, existing GJM calculus models the 3-D interaction with anisotropic media as a paraxial-like system constrained by specific SU(3) rotations, neglecting the influence of vectorial light path and defining the differential GJM (dGJM) as inherent and fixed. In this article, we first introduce a Lorentz-like algebra to establish a double-covering homomorphism between SL(3,C) and the Lorentz-like group LLG, which enables global and bi-directional mapping between GJM and GMM. Then, we propose a pure-matrix approach covering the vectorial light path to describe the 3-D anisotropic interaction, which enables polarization modeling along arbitrary light paths. The proposed theories further refine the framework of 3-D polarization optics and can be the foundation of a variety of non-paraxial polarization applications.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 18","pages":"37826-37839"},"PeriodicalIF":3.3,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145125648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Optimization of the Ritchey-Chrétien telescope for a discrete set of reference spheres. 参考球面离散集的ritchey - chriztien望远镜优化。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.563663

Ivan Loboda, Anton Réva

引用次数: 0

Composite multi-frequency oscillation driving for enhanced dynamic grayscale stability in electrophoretic displays. 增强电泳显示器动态灰度稳定性的复合多频振荡驱动。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.574202

Ruisi Gao, Jianwen Chen, Mian Qin, Ziyang Wang, Linli Li, Yuting Bai, Tianxin Tian, Shixiao Li, Pengfei Bai, Guofu Zhou

{"title":"Composite multi-frequency oscillation driving for enhanced dynamic grayscale stability in electrophoretic displays.","authors":"Ruisi Gao, Jianwen Chen, Mian Qin, Ziyang Wang, Linli Li, Yuting Bai, Tianxin Tian, Shixiao Li, Pengfei Bai, Guofu Zhou","doi":"10.1364/OE.574202","DOIUrl":"https://doi.org/10.1364/OE.574202","url":null,"abstract":"Electrophoretic displays (EPDs) occupy a unique position in display technologies due to their distinctive reflective operation and bistable characteristics. However, charged particles in the suspension medium tend to form agglomerates under van der Waals forces, significantly impairing particle mobility. This compromises precise control of particle motion through driving signals, leading to grayscale drift and dynamic response hysteresis. Conventional rapid-display driving waveforms with single-frequency oscillation fail to adequately activate particles. To overcome this limitation, we propose a composite multi-frequency oscillatory driving method. By sequentially applying high-frequency and medium-frequency oscillation waveforms, this approach achieves efficient disaggregation of particle agglomerates and precise particle positioning, demonstrably enhancing grayscale accuracy and image quality in EPD video applications. For grayscale rendering, the proposed method achieves a 40.462% reduction in average color difference (ΔE) and superior four-grayscale uniformity compared to other techniques. In dynamic imaging, it elevates the structural similarity index (SSIM) and peak signal-to-noise ratio (PSNR) by 16.675% and 15.092% respectively. Consequently, these advancements substantially enhance video stability and image fidelity while expanding EPD's grayscale expressiveness, thereby enhancing its viability for high-quality imaging and video-intensive applications.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 18","pages":"39167-39180"},"PeriodicalIF":3.3,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145125522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Design of wavelength division multiplexer based on sandwiched topological waveguides in a valley photonic crystal. 基于谷光子晶体夹层拓扑波导的波分复用器设计。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.569238

Bing-Qian Lu, Jun-Fang Wu, Chao Li

引用次数: 0

Deep learning enhanced dual-mode fluorescence cooperative imaging using upconversion nanoparticles. 深度学习增强上转换纳米粒子双模荧光协同成像。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.572954

Shijia Wu, Xiao Zhou, Weilong Kong, Yalan Zhao, Yunfei Shang, Zitong Zhang, Yongtao Liu

{"title":"Deep learning enhanced dual-mode fluorescence cooperative imaging using upconversion nanoparticles.","authors":"Shijia Wu, Xiao Zhou, Weilong Kong, Yalan Zhao, Yunfei Shang, Zitong Zhang, Yongtao Liu","doi":"10.1364/OE.572954","DOIUrl":"https://doi.org/10.1364/OE.572954","url":null,"abstract":"Multiphoton microscopy (MPM) has profoundly advanced deep-tissue imaging with superior optical sectioning capabilities. However, achieving high-resolution imaging at significant depths remains a challenge due to light scattering and resolution-penetration trade-offs. Here, we present a deep learning enhanced dual-modal fluorescence cooperative imaging (DL-DMFC) approach to achieve deep-penetration high-resolution imaging. By utilizing the multiple long-lived intermediate states, lanthanide upconversion nanoparticles (UCNPs) simultaneously induce two-photon (λemission1 = 808 nm) with higher penetration and four-photon (λemission2 = 455 nm) fluorescence with higher resolution under a single 980 nm pump source excitation. To synergistically leverage the advantages of imaging at two fluorescence, we trained artificial neural networks incorporating a dual mechanism based on adversarial training with cyclic consistency constraints is employed to establish a cross-domain mapping between the dual-modal signals. We demonstrate that this synergistic excitation and computational framework enable high-resolution (51% transverse resolution enhancement), anti-scattered 3D imaging beyond 500 μm. This approach solves the problem of penetration-resolution trade-off in MPM and provides a new strategy for deep tissue thick scattering imaging.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 18","pages":"38603-38617"},"PeriodicalIF":3.3,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145125566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Research on a multi-level adaptive denoising algorithm based on ICESat-2 background photon characteristics. 基于ICESat-2背景光子特性的多级自适应去噪算法研究。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.569324

Rong He, Longsheng Bi, Jinhua Lu, Shixin Yan

{"title":"Research on a multi-level adaptive denoising algorithm based on ICESat-2 background photon characteristics.","authors":"Rong He, Longsheng Bi, Jinhua Lu, Shixin Yan","doi":"10.1364/OE.569324","DOIUrl":"https://doi.org/10.1364/OE.569324","url":null,"abstract":"ICESat-2 data play a critical role in Earth observation, but the high sensitivity of the advanced topographic laser altimeter system (ATLAS) makes observations susceptible to environmental factors like solar radiation, generating substantial noise that compromises accurate retrieval of surface structural parameters. This paper proposes a preliminary-to-fine Multi-level denoising algorithm, whose innovations lie in improving the elliptical search domain in the fine denoising phase to adapt to slope change under complex terrain, innovatively proposing a method based on maximum background rate Indirect estimation threshold to eliminate noise, and in addition, optimizing the Box plot filter to make it more conforming to the photon distribution characteristics of areas with complex vertical structures such as forest and city. The outcome shows that the background rate of daytime ICESat-2 data is on the order of 105-106 points per second, which can directly reflect the density of noise photons in the data; in the data validation of four types of surface features, namely forest, wasteland, glacier, and city, the average denoising rate of the algorithm in this paper reaches 70%. Compared with existing algorithms, the R2 is increased by at least 4.30%, the MAE is reduced by 0.68 m, and the RMSE is reduced by 0.95 m, which fully attests to the suitability of the algorithm for denoising ICESat-2 data in daytime strong noise environments.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 18","pages":"38297-38316"},"PeriodicalIF":3.3,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145125585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Dielectric split-pin unit cell for gradient index lenses implementation by using 3D-printing. 使用3d打印实现梯度折射率透镜的介电分针单元。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-09-08 DOI: 10.1364/OE.571305

Kevin Pulgar, Eva Rajo-Iglesias, Francisco Pizarro

{"title":"Dielectric split-pin unit cell for gradient index lenses implementation by using 3D-printing.","authors":"Kevin Pulgar, Eva Rajo-Iglesias, Francisco Pizarro","doi":"10.1364/OE.571305","DOIUrl":"https://doi.org/10.1364/OE.571305","url":null,"abstract":"This article presents the design and implementation of a dielectric split-pin unit cell for designing graded index (GRIN) lenses using 3D printing technology. The proposed unit cell aims to simplify the fabrication process of GRIN lenses by leveraging the advantages of 3D printing. The design consists of two metallic parallel plates, one with a high-permittivity substrate layer and the other with an array of easily printable dielectric pins of lower permittivity. The variation in the height of these pins allows for the creation of the desired refractive index profiles. Four types of GRIN lenses-Maxwell, Luneburg, Gutman, and Fission lenses-are analyzed and designed to operate at a central frequency of 20 GHz. The study includes a parametric analysis to determine the necessary dimensions of the unit cells to achieve the required refractive indices. The effectiveness of the proposed design is validated through full-wave simulations and measurements of one fabricated lens, demonstrating good agreement with theoretical predictions and confirming the viability of this approach for practical applications in high-frequency devices.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 18","pages":"37654-37666"},"PeriodicalIF":3.3,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145125604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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