Applied Physics B最新文献_第2页

High-precision shear parameters calculation method in lateral shearing interferometry via transfer learning-enhanced TransUNet 基于迁移学习增强TransUNet的横向剪切干涉高精度剪切参数计算方法

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-23 DOI: 10.1007/s00340-025-08562-4

Bei Zhou, Ailing Tian, Liansheng Sui, Bingcai Liu, Hongjun Wang, Siqi Wang, Jiaming Su, Peifeng Liu

{"title":"High-precision shear parameters calculation method in lateral shearing interferometry via transfer learning-enhanced TransUNet","authors":"Bei Zhou, Ailing Tian, Liansheng Sui, Bingcai Liu, Hongjun Wang, Siqi Wang, Jiaming Su, Peifeng Liu","doi":"10.1007/s00340-025-08562-4","DOIUrl":"10.1007/s00340-025-08562-4","url":null,"abstract":"<div>\u0000 \u0000 <p>In lateral shearing interferometry, the discretely distributed edges and weak gradient variations in shearing interferograms can adversely affect the accurate calculation of shear parameters, consequently degrading wavefront reconstruction precision. To address this issue, this study proposes a TransUNet-based transfer learning method for shear parameter calculation. First the model pre-trained with simulated interferograms to learn fringe characteristics, then the model fine-tunes with limited real experimental data to overcome the scarcity of real interferograms. The model can achieve precise four-class segmentation of interferograms (background, two non-interference regions, and interference fringes), building upon the segmentation results, least-squares circle fitting algorithm is applied to simultaneously accomplish shear parameter calculation and wavefront center localization. Experimental validation demonstrates that the proposed method maintains excellent computational precision and automation levels even under noisy and weak-gradient conditions, while the shear parameters calculated by our method achieve significantly higher accuracy in wavefront reconstruction than existing mainstream algorithms.</p>\u0000 </div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110467","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

A Sagnac wavefront folding interferometer for characterizing partially coherent structured light 用于表征部分相干结构光的Sagnac波前折叠干涉仪

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-23 DOI: 10.1007/s00340-025-08544-6

Carlos Cardoso-Isidoro, Adad Yepiz-Escalante, Raul I. Hernandez-Aranda, Benjamin Perez-Garcia

引用次数: 0

Systematic benchmarking of hyperbolic soliton families reveals optimal profiles for nonlocal nonlinear optics 双曲孤子族的系统基准测试揭示了非局部非线性光学的最佳轮廓

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-22 DOI: 10.1007/s00340-025-08558-0

Manoj Mishra, Sujata Vedi, Mohit Sharma, Divya Yadav, Murugan Senthil Mani Rajan, Vigneswaran Dhasarathan

{"title":"Systematic benchmarking of hyperbolic soliton families reveals optimal profiles for nonlocal nonlinear optics","authors":"Manoj Mishra, Sujata Vedi, Mohit Sharma, Divya Yadav, Murugan Senthil Mani Rajan, Vigneswaran Dhasarathan","doi":"10.1007/s00340-025-08558-0","DOIUrl":"10.1007/s00340-025-08558-0","url":null,"abstract":"<div><p>This work presents a comprehensive variational and numerical analysis of hyperbolic-function optical beams—hyperbolic tangent-Gaussian (ThG), sine-Gaussian (ShG), and cosine-Gaussian (ChG) profiles—in strongly nonlocal nonlinear media. The novelty lies in deriving exact dynamical solutions and stability criteria for each profile, enabling direct comparison of confinement efficiency, critical power, and robustness. Quantitative results show that ChG beams achieve the lowest critical power for self-trapping, with <span>(P_{textrm{cr}}^{textrm{ChG}})</span> up to <span>(37%)</span> lower than ShG and <span>(22%)</span> lower than ThG at <span>(m=3)</span>, and maintain stable propagation up to 2.1 times their critical power threshold. ChG profiles also exhibit the broadest stability domain in the <span>((m, P_0))</span> parameter space and the highest confinement efficiency, with efficiency values exceeding those of ThG and ShG by factors of 1.5 and 2.3, respectively, for <span>(sigma =5)</span>. Spectral analysis reveals that increasing the profile order <i>m</i> leads to a 1.8 times broadening of the spectral energy for ChG beams compared to ThG. These findings establish ChG beams as optimal for robust, power-efficient self-trapped beam propagation in nonlocal nonlinear optical systems and provide universal design principles for advanced soliton-based photonic devices. The findings offer direct applicability in advanced soliton-based photonic devices including all-optical soliton routers, reconfigurable beam steering platforms in nematic liquid crystals, and hollow Gaussian pulse control in photonic crystal fibers. The ability to engineer beam symmetry and stability under nonlocality provides a foundation for robust nonlinear signal processing.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110523","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

Influence of alignment mismatch in a piecewise hollow-core-fiber system on laser pulse propagation dynamics 分段空心芯光纤系统中对准失配对激光脉冲传播动力学的影响

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-15 DOI: 10.1007/s00340-025-08556-2

Ding Wang, Yuxin Leng

引用次数: 0

MXene resonator-based highly efficient ultrawideband absorber for thermal and solar absorber application 基于MXene谐振器的高效超宽带吸收体，用于热吸收和太阳能吸收

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-12 DOI: 10.1007/s00340-025-08553-5

Jusu M. Ngobeh, Vishal Sorathiya, Abdullah G. Alharbi

{"title":"MXene resonator-based highly efficient ultrawideband absorber for thermal and solar absorber application","authors":"Jusu M. Ngobeh, Vishal Sorathiya, Abdullah G. Alharbi","doi":"10.1007/s00340-025-08553-5","DOIUrl":"10.1007/s00340-025-08553-5","url":null,"abstract":"<div><p>The design features MXene–SiO<sub>2</sub>–Fe-based metasurfaces to enhance efficient absorption across a wide range of the solar spectrum. The proposed investigation of the absorber is essential for an efficient thermal energy harvesting solution and a broad frequency range of both infrared and visible light absorber architectures. The findings derived from computational and numerical analyses will assist in identifying optimal material geometries for effective wideband infrared and visible UV light absorbers and thermal harvesting structures. The entire structure is evaluated against interference theory-based calculations to ascertain effective absorption across the solar spectrum. The basic parameters, such as refractive index, permittivity, permeability, and impedance, were presented for the proposed structure to identify its metamaterial effect. This study introduced a double-multilayer structure of SiO<sub>2</sub> and Fe as the metamaterials. MXene is a resonator in the THz frequency range at an angle of incidence of 60° degrees, within the range of plasmonic insensitivity. The absorption capacity reaches > 90%, making the proposed structures suitable for harvesting solar energy. In addition, the simulated results show high thermal radiation and high thermal efficiency with increasing temperature, emphasizing the importance of simulating MXene as a resonator. The proposed structure can be crucial for designing highly efficient parasitic solar absorbers for multiple solar and thermal absorption applications.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037226","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

Beam control of broad-area semiconductor lasers using high-order sidewall gratings 采用高阶侧壁光栅的广域半导体激光器光束控制

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-12 DOI: 10.1007/s00340-025-08555-3

Gaohui Yuan, Jingfei Mu, Yinli Zhou, Jianwei Zhang, Chao Chen, Yingli Zhou, Zhuo Zhang, Tianjiao Liu, Tianqi Zhang, Xiaoyan Gao, Yu Cao, Yongqiang Ning, Lijun Wang

{"title":"Beam control of broad-area semiconductor lasers using high-order sidewall gratings","authors":"Gaohui Yuan, Jingfei Mu, Yinli Zhou, Jianwei Zhang, Chao Chen, Yingli Zhou, Zhuo Zhang, Tianjiao Liu, Tianqi Zhang, Xiaoyan Gao, Yu Cao, Yongqiang Ning, Lijun Wang","doi":"10.1007/s00340-025-08555-3","DOIUrl":"10.1007/s00340-025-08555-3","url":null,"abstract":"<div><p>This study systematically investigates the beam quality degradation in conventional broad-area semiconductor lasers, which arises from the excitation of higher-order transverse modes under high injection currents. To address this fundamental limitation, we propose and demonstrate a novel lateral surface grating structure integrated on both sides of the ridge waveguide. Through comprehensive numerical and experimental analyses, we first examine the optical loss characteristics induced by the grating structure. Subsequently, we explore the mode modulation mechanism by systematically varying the separation distance between the gratings and the ridge waveguide. Our results reveal that reducing this critical distance significantly enhances the grating's ability to suppress higher-order transverse modes. This improvement manifests in two key aspects: (1) a notable reduction in the transverse divergence angle in the far-field pattern, and (2) a more concentrated energy distribution in the near-field profile. These findings demonstrate the effectiveness of our proposed approach in achieving superior beam quality while maintaining stable laser operation.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00340-025-08555-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037220","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}

引用次数: 0

Manipulation of cross-polarization conversion and unidirectional reflectionlessness by VO2 in a terahertz metamaterial 太赫兹超材料中VO2对交叉偏振转换和单向无反射的操纵

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-09 DOI: 10.1007/s00340-025-08547-3

Wenxuan Yuan, Ying Qiao Zhang, Xing Ri Jin

引用次数: 0

Limiting the incident angle of a corner cube reflector applied in the laser 限制角锥反射器在激光中的入射角

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-08 DOI: 10.1007/s00340-025-08551-7

Yidan Zhang, Zhenguo Zhang, Youlun Ju, Yu Yu

{"title":"Limiting the incident angle of a corner cube reflector applied in the laser","authors":"Yidan Zhang, Zhenguo Zhang, Youlun Ju, Yu Yu","doi":"10.1007/s00340-025-08551-7","DOIUrl":"10.1007/s00340-025-08551-7","url":null,"abstract":"<div><p>A corner cube retroreflector (CCR) laser boasts an exceptional anti-misalignment property, and the limiting incident angle of the CCR determines its anti-misalignment capabilities. To facilitate an efficient analysis of the limiting incident angle of a CCR, we present an analytical expression for its three side reflection angles. Subsequently, we analyze the anti-misalignment limiting incident angle of the CCR, considering its bottom surface shape and refractive index. Theoretical analysis and simulation results indicate that when the refractive index (<i>n</i><sub>1</sub>) ≥ 1.22, the larger the value of <i>n</i><sub><i>1</i></sub>, the larger the limiting incident angle. When <i>n</i><sub>1</sub> ≥ 2.175, the refractive index is no longer a limiting factor for the limiting incident angle. Furthermore, for the bottom surface shape of the CCR, the smaller the height–radius ratio of the CCR, the larger the limiting incident angle allowed by the CCR, which results in better anti-misalignment capability. This study provides a concise and efficient model for analyzing the anti-misalignment ability of the CCR. Additionally, it establishes a theoretical foundation for calculating the limiting incident angle of the CCR when dealing with incident light featuring a small optical field diameter.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007803","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

High power and efficient continuous-wave and acousto-optically Q-switched Tm:LGGG disordered crystal laser under in-band dual-diode-pumping 带内双二极管抽运下的高功率高效连续波声光调q无序晶体激光器

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-08 DOI: 10.1007/s00340-025-08552-6

Wensheng Zhang, Linjun Li, Xiaoming Duan, Yuanyuan Liu, Yujun Zhang, Hong Liang

引用次数: 0

Spectrally combining beam degradation caused by DLA defects: modeling and analysis DLA缺陷引起的光谱组合波束退化：建模与分析

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-06 DOI: 10.1007/s00340-025-08546-4

Guiqi Zhong, Peng Feng, Danni Li, Ling Liu, Zhen Wu, Mingxia Feng, Kai Jia, Zheqiang Zhong

{"title":"Spectrally combining beam degradation caused by DLA defects: modeling and analysis","authors":"Guiqi Zhong, Peng Feng, Danni Li, Ling Liu, Zhen Wu, Mingxia Feng, Kai Jia, Zheqiang Zhong","doi":"10.1007/s00340-025-08546-4","DOIUrl":"10.1007/s00340-025-08546-4","url":null,"abstract":"<div><p>The paper investigates the degradation of beam quality in spectral beam combining (SBC) systems with dual-gratings caused by defects in diode laser arrays (DLAs), focusing on the combined effects of beam linewidth, divergence angle, and beam deflection. A comprehensive model is developed to analyze how these defects affect the wavelength-locking mechanism and beam propagation, thereby degrading the output beam characteristics. The results reveal that the dual-grating configuration effectively mitigates angular broadening induced by linewidth dispersion. A linewidth of 1 nm results in a mere 8% reduction in the peak intensity of the combined beam, concomitantly leading to a 0.5 increase in the β factor. Although beam divergence exacerbates the degradation of beam quality, beam deflection is the dominant factor. A deflection angle of 3 mrad results in a 38% reduction in peak intensity and a 2.6 increase in the β factor, underscoring the necessity of controlling beam deflection. We hope this work provides critical insights into the interplay between DLA imperfections and SBC performance, offering a theoretical foundation for optimizing high-power, near-diffraction-limited beam combining systems.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998563","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