Optics express最新文献_第2页

Real-time sensing approach for optical frequency domain reflectometry using an FPGA-based high-speed demodulation algorithm 利用基于 FPGA 的高速解调算法实现光学频域反射测量的实时传感方法

IF 3.8 2区物理与天体物理

Optics express Pub Date : 2024-08-30 DOI: 10.1364/oe.537627

Haomao Wang, Tong Zhai, Yifan Wang, Youze Liu, Rui Zhou, Xin Peng, Zhiguo Zhang

引用次数: 0

Ultraviolet positioning via TDOA: error analysis and system prototype 通过 TDOA 进行紫外线定位：误差分析和系统原型

IF 3.8 2区物理与天体物理

Optics express Pub Date : 2024-08-30 DOI: 10.1364/oe.534560

Shihui Yu, Chubing Lv, Yueke Yang, Yuchen Pan, Lei Sun, Juliang Cao, Ruihang Yu, Wenqi Wu, Chen Gong, Zhengyuan Xu

引用次数: 0

Two-dimensional vortex dipole, tripole, and quadrupole solitons in nonlocal nonlinearity with Gaussian potential well and barrier 具有高斯势阱和势垒的非局部非线性中的二维涡旋偶极子、三极子和四极子孤子

IF 3.8 2区物理与天体物理

Optics express Pub Date : 2024-08-30 DOI: 10.1364/oe.534438

Peijun Chen, Jiangli Dong, Junhui Ou

{"title":"Two-dimensional vortex dipole, tripole, and quadrupole solitons in nonlocal nonlinearity with Gaussian potential well and barrier","authors":"Peijun Chen, Jiangli Dong, Junhui Ou","doi":"10.1364/oe.534438","DOIUrl":"https://doi.org/10.1364/oe.534438","url":null,"abstract":"In this work, we investigate the dynamics and stability of two-dimensional (2D) vortex dipole, tripole, and quadrupole solitons with fundamental topological charge (m = 1) and higher topological charge (m > 1) in nonlocal nonlinearity with Gaussian potential well and barrier. Both analytical and numerical methods are applied to explore these vortex solitons. The analytical expressions are derived by utilizing the variational approach. The numerical simulations show that nonlocality cannot stabilize the vortex dipole, tripole, and quadrupole beams with topological charge m = 1. Interestingly, it is found that these vortex solitons remain stable during propagation only when the topological charge is m = 2 and when the propagation constants are below specific thresholds, where the vortex beams can maintain their profile no matter whether the nonlocality is weak, intermediate, or strong or how the Gaussian potential barrier height (well depth) increases. Furthermore, for the solitons with higher topological charge (m = 4), another consistent pattern emerges, that is, vortex dipole, tripole, and quadrupole solitons split into stable petal solitons and fundamental solitons with the number of petal solitons corresponding to the number of vortex solitons present. The analytical results are verified by numerical simulations.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"153 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184765","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

3D reconstruction of gas cloud concentration field with high temporal and spatial resolution based on an imaging-type FTIR 基于成像型傅立叶变换红外成像技术的高时空分辨率气体云浓度场三维重建技术

IF 3.8 2区物理与天体物理

Optics express Pub Date : 2024-08-30 DOI: 10.1364/oe.534822

Bo Yan, Shuaihui Li, Junyong Fang, Dandan Zeng, She Chen, Hao Chen

{"title":"3D reconstruction of gas cloud concentration field with high temporal and spatial resolution based on an imaging-type FTIR","authors":"Bo Yan, Shuaihui Li, Junyong Fang, Dandan Zeng, She Chen, Hao Chen","doi":"10.1364/oe.534822","DOIUrl":"https://doi.org/10.1364/oe.534822","url":null,"abstract":"Imaging-type FTIR devices provide numerous benefits for the detection and alarm of hazardous gases. This paper presents an improved algorithm for reconstructing the 3D concentration field of gas clouds, utilizing hypothesis testing and a synchronized algebraic iteration algorithm. Specifically designed for use with imaging-type FTIR devices, this algorithm enables rapid reconstruction of gas cloud concentration fields. Using CFD software, an open-space detection scenario for HFC-152a gas was simulated, and the 3D concentration field was reconstructed from dual-angle column concentration data. The accuracy was confirmed, with a deviation of less than 4.6% in re-projected column concentrations along the center streamline and a maximum deviation of 8.8% between simulated and reconstructed voxel concentrations. Laboratory experiments further validated the algorithm. Two sets of line-of-sight angles yielded similar average total mass results calculated from the continuously reconstructed concentration field, measuring 7285.8 mg and 7310.1 mg, with relative standard deviations of 2.4% and 2.7%, respectively. In an open field, an experimental detection of HFC-152a gas leakage was conducted. The algorithm employed facilitated the 3D reconstruction and precise localization of the gas leak source, which underscores the algorithm’s versatility across various environmental contexts and its utility in determining the source of gas leaks. The lab and open field experiments share a same temporal resolution of 2.9 seconds. The algorithm proposed in this article effectively expands the practicality of imaging-type FTIR devices for real-time gas leak monitoring applications.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"11 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184766","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

High-precision short-distance dual-comb ranging system without carrier-envelope-offset locking 无载波包络偏移锁定的高精度短距离双梳状测距系统

IF 3.8 2区物理与天体物理

Optics express Pub Date : 2024-08-30 DOI: 10.1364/oe.535020

Yuetang Yang, Shan Qian, Siyu Zhou, Guanhao Wu

引用次数: 0

Hybrid approach for deformable mirror online system identification using RLS algorithm and adaptive forgetting factor optimization 使用 RLS 算法和自适应遗忘因子优化的可变形镜在线系统识别混合方法

IF 3.8 2区物理与天体物理

Optics express Pub Date : 2024-08-29 DOI: 10.1364/oe.529753

M. A. Aghababayee, M. Mosayebi, H. Saghafifar

{"title":"Hybrid approach for deformable mirror online system identification using RLS algorithm and adaptive forgetting factor optimization","authors":"M. A. Aghababayee, M. Mosayebi, H. Saghafifar","doi":"10.1364/oe.529753","DOIUrl":"https://doi.org/10.1364/oe.529753","url":null,"abstract":"In this study, an online system identification (SI) approach based on a recursive least squares algorithm with an adaptive forgetting factor (AFFRLS) is proposed to accurately identify the dynamic behavior of a deformable mirror (DM). Using AFFRLS, an adaptive expression that minimizes a weighted linear least squares cost function relating to the input and output signals is obtained. First, the selected identification signals in COMSOL multi-physics software were applied to the finite element (FE) model of the DM. Then, using the COMSOL Livelink for MATLAB, the values of DM deformations are imported into MATLAB. Subsequently, the system is analyzed and identified online using the AFFRLS algorithm and through the optimization of an adaptive forgetting factor. Finally, for validation, the output values of DM have been evaluated with the output values of the proposed model by applying new input signals in order to find the optimal adaptive forgetting factor parameters. For the first time, in this work, the DM’s dynamics has been identified using the AFFRLS algorithm, which has acceptable accuracy despite some drawbacks. In addition, the results show that the AFFRLS method has a significant dominance in terms of accuracy, simplicity and noise reduction despite the slight decrease in speed due to the high computational load.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"49 11 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184769","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

Propagation dynamics and radiation forces of circular Bessel Gaussian beams carrying power-cotangent-phase vortices 携带动力切相涡旋的圆贝塞尔高斯光束的传播动力学和辐射力

IF 3.8 2区物理与天体物理

Optics express Pub Date : 2024-08-05 DOI: 10.1364/oe.532969

Jian Yu, Shandong Tong, Zhe Zhang, Huihong Long, Yuan Luo, Peichao Zheng, Zhiyong Bai

{"title":"Propagation dynamics and radiation forces of circular Bessel Gaussian beams carrying power-cotangent-phase vortices","authors":"Jian Yu, Shandong Tong, Zhe Zhang, Huihong Long, Yuan Luo, Peichao Zheng, Zhiyong Bai","doi":"10.1364/oe.532969","DOIUrl":"https://doi.org/10.1364/oe.532969","url":null,"abstract":"In this paper, the circular Bessel Gaussian beams (CBGBs) carrying power-cotangent-phase vortices are firstly introduced, whose propagation dynamics are explored theoretically and experimentally. The number of spiral lobes, rotation direction, rotation angle, and shape of the new type of beam can be flexibly modulated by controlling multiple parameters of power-cotangent-phase vortices. Accordingly, the effect of multiple beam parameters on abruptly autofocusing ability is quantified and compared by using the K-value curve that is described by ratio Im/I0, where Im and I0 correspond to the maximum intensities at different propagation distance and the initial plane, respectively. The physical mechanism of intensity distribution variation depended on the propagation distance and power-cotangent-phase parameters are also demonstrated convincingly by employing the Poynting vector. In addition, the advantages and applications of the proposed beam as a tool for the Rayleigh particle manipulation are analyzed theoretically. It is expected that the introduced beam can be useful for extending applications of optical vortices, particularly for multiple particle manipulation.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"11 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141948028","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

Holographic interferometric vibration measurement based on photorefractive crystal in diffusion mode 基于扩散模式光折射晶体的全息干涉振动测量技术

IF 3.8 2区物理与天体物理

Optics express Pub Date : 2024-08-01 DOI: 10.1364/oe.533908

Jiongye Gao, Bin Zhang, Qibo Feng, Shangwu Liu, Zhongqing Cao

引用次数: 0

Calculating point spread functions: methods, pitfalls, and solutions. 计算点扩散函数：方法、陷阱和解决方案。

IF 3.2 2区物理与天体物理

Optics express Pub Date : 2024-07-29 DOI: 10.1364/OE.523532

Ratsimandresy Holinirina Dina Miora, Erich Rohwer, Martin Kielhorn, Colin Sheppard, Gurthwin Bosman, Rainer Heintzmann

引用次数: 0

One-way optomechanical interaction between nanoparticles. 纳米粒子之间的单向光学机械相互作用。

IF 3.2 2区物理与天体物理

Optics express Pub Date : 2024-07-29 DOI: 10.1364/OE.525858

Amir M Jazayeri, Sohila Abdelhafiz, Aristide Dogariu

引用次数: 0