IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-07-05 DOI: 10.1016/j.optlastec.2025.113484

Demin Xu , Mengchao Wang , Weiqian Zhao , Rongji Li , Lirong Qiu

{"title":"Laser scanning confocal vibration microscopy for simultaneous in-situ detection of topography and vibration","authors":"Demin Xu , Mengchao Wang , Weiqian Zhao , Rongji Li , Lirong Qiu","doi":"10.1016/j.optlastec.2025.113484","DOIUrl":"10.1016/j.optlastec.2025.113484","url":null,"abstract":"<div><div>Confocal microscopy (CM) has emerged as a widely adopted technique for the three-dimensional geometric characterization of micro-electromechanical systems (MEMS), owing to its non-contact nature and sub-micrometer resolution. However, the rapid development and widespread adoption of MEMS resonant devices have rendered standalone static topography measurements inadequate to meet evolving characterization requirements. This gap necessitates innovative approaches for synchronous in-situ detection of geometric and dynamic parameters during device operation. To address this challenge, this study proposes a novel laser scanning confocal vibration microscopy (LSCVM) method that enables simultaneous topographical mapping and vibrational parameter acquisition without requiring operational state switching. The LSCVM method utilizes continuous wavelet transform (CWT) to perform time–frequency analysis on vibration-coupled confocal axial response curves, thereby extracting vibrational parameters. Concurrently, linear bilateral fitting of skewed segments is applied to derive topographic parameters. Through this approach, the LSCVM method achieves simultaneous topographic and vibrational detection via a single axial scan, attaining a geometric spatial resolution of 300 nm and an amplitude resolution of 0.4 nm. Experimental validation using a micro-cantilever beam device confirmed the feasibility and advantages of the LSCVM method, demonstrating its potential as a novel approach for the in-situ performance evaluation of operational MEMS devices.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"192 ","pages":"Article 113484"},"PeriodicalIF":4.6,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557268","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

Generation of dissipation-induced Knill-Laflamme-Milburn state for trapped ions 捕获离子耗散诱导Knill-Laflamme-Milburn态的产生

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-07-05 DOI: 10.1016/j.optlastec.2025.113493

Dong-Xiao Li , Hui-Wen Xiao , Chong Yang , Yi-Meng Yao

引用次数: 0

Enhanced single-frame interferogram phase retrieval using a model-based domain adaptation network 基于模型的域自适应网络增强单帧干涉图相位检索

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-07-04 DOI: 10.1016/j.optlastec.2025.113483

Runzhou Shi , Tian Zhang , Yuqi Shao , Peiyu Yin , Qijie Chen , Jian Bai

{"title":"Enhanced single-frame interferogram phase retrieval using a model-based domain adaptation network","authors":"Runzhou Shi , Tian Zhang , Yuqi Shao , Peiyu Yin , Qijie Chen , Jian Bai","doi":"10.1016/j.optlastec.2025.113483","DOIUrl":"10.1016/j.optlastec.2025.113483","url":null,"abstract":"<div><div>Accurate phase retrieval from interferograms is critical for interferometry. Existing deep learning methods fail to fully exploit the physical model of the interferometry, resulting in limited accuracy. This paper proposes a model-based domain adaptation network (MDANet) for end-to-end phase retrieval from single-frame interferograms. MDANet effectively extracts domain-invariant phase features, enhancing its adaptability and robustness across diverse interferometric systems. The dataset generated using the model-based approach facilitates enhanced learning of phase features. The network architecture consists of an encoder, a discriminator, and a decoder. The encoder extracts phase features from the interferograms, while the discriminator reduces the domain gap, ensuring that only phase information is preserved. The decoder reconstructs these features into output phase maps. Simulation and experimental results demonstrate that MDANet outperforms existing methods in accuracy and adaptability, offering an improved solution for dynamic interferometry.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"192 ","pages":"Article 113483"},"PeriodicalIF":4.6,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550052","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

Engineering of self-bending surface plasmon polaritons through Hermite–Gaussian mode expansion 利用厄米-高斯模式展开的自弯曲表面等离子体激元工程

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-07-04 DOI: 10.1016/j.optlastec.2025.113462

Javier Hernandez-Rueda, Ángel S. Sanz, Rosario Martínez-Herrero

{"title":"Engineering of self-bending surface plasmon polaritons through Hermite–Gaussian mode expansion","authors":"Javier Hernandez-Rueda, Ángel S. Sanz, Rosario Martínez-Herrero","doi":"10.1016/j.optlastec.2025.113462","DOIUrl":"10.1016/j.optlastec.2025.113462","url":null,"abstract":"<div><div>Surface plasmon polaritons have received much attention over the last decades in photonics or nanotechnology due to their inherent high sensitivity to metal surface variations (e.g., presence of adsorbates or changes in the roughness). It is thus expected that they will find promising major applications in widely cross-disciplinary areas, from material science to medicine. Here we introduce a novel theoretical framework suitable for designing new types of structured paraxial surface plasmon beams and controlling their propagation. More specifically, this method relies on a convenient Hermite-Gaussian mode expansion, which constitutes a complete basis set upon which new types of structured paraxial plasmon beams can be generated. The family of beams generated in this way presents a rather peculiar feature: they exhibit local intensity maxima at different propagation distances, which enables the control over where to place the beam energy. This, thus, opens up worthwhile pathways to manipulate light propagation along metal surfaces at the nanoscale. As a proof-of-concept, we provide numerical evidence of the feasibility of the method by analyzing the propagation of Airy-based surface plasmon polaritons along an air-silver interface.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"192 ","pages":"Article 113462"},"PeriodicalIF":4.6,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557265","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

Optimised laser cleaning of paint from aluminum alloy based on thermal stress-induced integral peeling strategy 基于热应力诱导整体剥离策略的铝合金涂层激光清洗优化研究

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-07-04 DOI: 10.1016/j.optlastec.2025.113437

Dehui Lin , Fei Lianga , Wenfeng Pan , Zejia Zhao , Yanyan Li , Jinyue Xie , Yuting Dong , Lisa Liu , Feng Song

{"title":"Optimised laser cleaning of paint from aluminum alloy based on thermal stress-induced integral peeling strategy","authors":"Dehui Lin , Fei Lianga , Wenfeng Pan , Zejia Zhao , Yanyan Li , Jinyue Xie , Yuting Dong , Lisa Liu , Feng Song","doi":"10.1016/j.optlastec.2025.113437","DOIUrl":"10.1016/j.optlastec.2025.113437","url":null,"abstract":"<div><div>The anodic oxide film is susceptible to damage during laser paint removal of aluminum alloy aircraft skins. In response to this issue, we proposed a cleaning strategy named Thermal Stress-Induced Integral Peeling (TSIP). Under the guidance of this strategy, we conducted laser paint removal experiments using an infrared nanosecond pulsed laser. The microscopic morphology, elemental composition, corrosion current density (5.4 × 10<sup>−7</sup> A/cm<sup>2</sup>), and contact angle (70.28°) of the cleaned surface were highly consistent with the original oxide film, indicating that optimum cleaning was successfully realized. Furthermore, the oxide film damage mechanism was revealed by combining macro/micro morphology analysis and thermo-mechanical simulation. The thermal stress at the bottom of the paint layer exceeds its fracture strength, causing it to fragment and detach from the surface, forming holes. Subsequent pulses then pass through these holes to directly irradiate the oxide film, thereby damaging it. The process window for optimum cleaning, obtained through thermal stress simulation, is 2.32–3.20 J/cm<sup>2</sup>, which is in good agreement with the experimental results. The research provides a new approach for optimum cleaning and contributes to advancing the engineering application of laser paint removal on aircraft skins.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"192 ","pages":"Article 113437"},"PeriodicalIF":4.6,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557266","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

Fiber-assisted cascade-excited colorful random lasing with ring-shaped angular spectrum for imaging 具有环形角光谱的光纤辅助级联激发彩色随机激光成像

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-07-04 DOI: 10.1016/j.optlastec.2025.113489

Jiayao Liu , Huihui Shen , Xiaolin Wang , Hongyu Yuan , Zimeng Zeng , Yaoxing Bian , Zhaona Wang

{"title":"Fiber-assisted cascade-excited colorful random lasing with ring-shaped angular spectrum for imaging","authors":"Jiayao Liu , Huihui Shen , Xiaolin Wang , Hongyu Yuan , Zimeng Zeng , Yaoxing Bian , Zhaona Wang","doi":"10.1016/j.optlastec.2025.113489","DOIUrl":"10.1016/j.optlastec.2025.113489","url":null,"abstract":"<div><div>Colorful random lasing with low spatial coherence has significant applications in high-quality imaging and displaying. Here, a dual-channel colorful random lasing with ring-shape angular spectrum (AS) is achieved by using optical fiber (OF) assisted cascade excitation configuration through coupling the donor and acceptor microcavities on an OF. The waveguiding role of OF significantly improves the photon transfer efficiency between the donor and acceptor random lasers (RLs). When the donor RLs are pumped, colorful lasing of green–red, blue-red, and blue-green are obtained at the two endfaces, respectively. By switching the pumping strategies of the coupled RL system with red, green, and blue RLs on the fiber, red, green, blue, and white random lasing is observed from the same endface, indicating the color-programmable characteristics. The obtained random lasing is used as the illumination source to obtain the speckle-suppression colorful images. The results offer a flexible approach for implementing ring-shape AS RLs with significant applications in imaging and display.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"192 ","pages":"Article 113489"},"PeriodicalIF":4.6,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144556618","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

Exploring cosmic dynamics in f(Q,C) gravity with modified corrections 在修正后的f（Q，C）引力中探索宇宙动力学

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2025-07-04 DOI: 10.1016/j.physleta.2025.130773

M. Sharif , M. Zeeshan Gul , Ahmad Nawaz

引用次数: 0

5f electron induced spin transport by sandwich-type phthalocyanine 三明治型酞菁的5f电子诱导自旋输运

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-04 DOI: 10.1016/j.ssc.2025.116063

Lu Xu , Ding Wang , Xiaobo Yuan , Dongfa Lan , Yu Zhu , Xiaobo Li , Weiyu Xie

{"title":"5f electron induced spin transport by sandwich-type phthalocyanine","authors":"Lu Xu , Ding Wang , Xiaobo Yuan , Dongfa Lan , Yu Zhu , Xiaobo Li , Weiyu Xie","doi":"10.1016/j.ssc.2025.116063","DOIUrl":"10.1016/j.ssc.2025.116063","url":null,"abstract":"<div><div>The rapid development of integrated circuits highlights the critical need for novel spintronic device designs. Sandwich-type phthalocyanine molecules, with their unique electrical and magnetic properties, show great potential in spintronic applications. Actinide elements, due to the strong interaction of their 5f electrons, can induce various exotic spin transport effects. In this study, we employed the non-equilibrium Green's function method combined with density functional theory (NEGF-DFT) to investigate the spin transport properties of the actinide sandwich phthalocyanine molecule U(<em>Pc</em>)<sub>2</sub>. Electronic structure analysis indicates that the 5f electrons of uranium atom dominate its frontier orbital behavior. Transport property analyses reveal that when the bias voltage exceeds 0.4 V, the current increases significantly, due to an increase in the spin-up electron transmission peak, primarily contributed by 5f electrons. Our results underscore the dominant role of U-5f electrons in the spin transport of U(<em>Pc</em>)<sub>2</sub>. This study aims to provide beneficial assistance for the development of actinide phthalocyanine molecular spintronic devices.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"404 ","pages":"Article 116063"},"PeriodicalIF":2.1,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144556578","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

Dark matter spike surrounding supermassive black holes binary and the nanohertz stochastic gravitational wave background 超大质量黑洞双星和纳赫兹随机引力波背景周围的暗物质尖峰

IF 5 2区物理与天体物理

Physics of the Dark Universe Pub Date : 2025-07-04 DOI: 10.1016/j.dark.2025.102004

Zhao-Qiang Shen , Guan-Wen Yuan , Yi-Ying Wang , Yuan-Zhu Wang , Yin-Jie Li , Yi-Zhong Fan

{"title":"Dark matter spike surrounding supermassive black holes binary and the nanohertz stochastic gravitational wave background","authors":"Zhao-Qiang Shen , Guan-Wen Yuan , Yi-Ying Wang , Yuan-Zhu Wang , Yin-Jie Li , Yi-Zhong Fan","doi":"10.1016/j.dark.2025.102004","DOIUrl":"10.1016/j.dark.2025.102004","url":null,"abstract":"<div><div>The NANOGrav, PPTA, EPTA, CPTA and MPTA collaborations have reported compelling evidence for the existence of the Stochastic Gravitational-Wave Background (SGWB). This inferred background’s amplitude and frequency spectrum align closely with the astrophysical predictions for a signal originating from the population of supermassive black hole (SMBH) binaries. Considering these findings, we explore the possibility of detecting dark matter (DM) spikes surrounding SMBHs, which could alter the gravitational-wave waveform and influence the SGWB. We show that the evolution of SMBH binaries, driven by both gravitational radiation and the dynamic friction of the surrounding DM spike, presents observable effects in the nHz frequency domain of the SGWB. We also employ the Bayesian inference method to fit the SGWB spectra from the NANOGrav, EPTA, and PPTA. The model with DM spike improves the fittings to the former two data sets. The spike slope <span><math><msub><mrow><mi>γ</mi></mrow><mrow><mi>sp</mi></mrow></msub></math></span> is slightly smaller than 1, which may suggest that the spike is flattened during the inspiral of the SMBHBs.</div></div>","PeriodicalId":48774,"journal":{"name":"Physics of the Dark Universe","volume":"49 ","pages":"Article 102004"},"PeriodicalIF":5.0,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557092","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

Deep learning-based fast multispectral Fourier ptychographic microscopy 基于深度学习的快速多光谱傅立叶显微术

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-07-04 DOI: 10.1016/j.optlastec.2025.113464

Jiurun Chen , Fengze Sui , Muyao Chen , Yang Xu , Qiang Huang , Yanqi Chen , Fannuo Xu , Zhen Song , Yonghong He

{"title":"Deep learning-based fast multispectral Fourier ptychographic microscopy","authors":"Jiurun Chen , Fengze Sui , Muyao Chen , Yang Xu , Qiang Huang , Yanqi Chen , Fannuo Xu , Zhen Song , Yonghong He","doi":"10.1016/j.optlastec.2025.113464","DOIUrl":"10.1016/j.optlastec.2025.113464","url":null,"abstract":"<div><div>Multispectral imaging and Fourier ptychographic microscopy (FPM) provide enhanced spectral information for biomedical and computational imaging, but conventional systems are limited by high acquisition time and hardware complexity. We propose a fast multispectral FPM (FMSFPM) framework that integrates our prior generalized Color-transfer-based FPM (gCFPM) [Adv. Photon. Nexus 4,026,001 (2025)] with an attention-enhanced U-Net to reconstruct high-resolution multispectral images (MSI) from RGB inputs. This deep learning approach effectively captures spectral-spatial features and extends spectral channels without additional acquisition requirements. Experimental results on the public CAVE dataset and a self-collected microscopic dataset of locust muscle sections demonstrate that FMSFPM achieves superior reconstruction quality while significantly reducing processing time. The method offers a compact and scalable solution for high-throughput multispectral imaging in biomedical and optical applications.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"192 ","pages":"Article 113464"},"PeriodicalIF":4.6,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550051","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

物理与天体物理最新文献