Optics and Laser Technology最新文献

High-resolution measurements of the full-angle aerosol scattering phase function in open path 开放路径下全角度气溶胶散射相函数的高分辨率测量

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-19 DOI: 10.1016/j.optlastec.2025.113386

Liang Mei , Xuekai Hong , Hangyi Liu , Xinglong Yang , Wei Peng , Zheng Kong

{"title":"High-resolution measurements of the full-angle aerosol scattering phase function in open path","authors":"Liang Mei , Xuekai Hong , Hangyi Liu , Xinglong Yang , Wei Peng , Zheng Kong","doi":"10.1016/j.optlastec.2025.113386","DOIUrl":"10.1016/j.optlastec.2025.113386","url":null,"abstract":"<div><div>The aerosol scattering phase function (ASPF), a crucial element of aerosol optical properties, is pivotal for radiative forcing calculations and aerosol remote sensing detection. Current detection methods for the ASPF include multi-sensor detection, single-sensor rotational detection and imaging detection. However, these methods face challenges in achieving high-resolution full-angle measurement, particularly for small forward (i.e., less than 10°) or backward (i.e., more than 170°) scattering angles in open path. In this work, a full-angle ASPF detection system based on the multi-field-of-view Scheimpflug lidar technique has been proposed and demonstrated. A 450 nm continuous-wave semiconductor laser was utilized as the light source and four CMOS image sensors were employed as detectors. To detect the full-angle ASPF, four receiving units capture angular scattering signals across different angle ranges, namely 0°–20°, 10°–96°, 84°–170°, 160°–180°, respectively. The influence of the relative illumination and angular response of the used image sensors have been corrected, and a signal stitching algorithm was developed to obtain a complete 0–180° angular scattering signal. Atmospheric measurements have been conducted by employing the full-angle ASPF detection system in open path. The experimental results of the ASPF have been compared with the AERONET data from the Socheongcho station and simulated ASPF based on the typical aerosol models in mainland China, showing excellent agreement. The promising results demonstrated in this work have shown a great potential for detecting the full-angle ASPF in open path.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113386"},"PeriodicalIF":4.6,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313894","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-bandwidth CMOS-level integrated thin-film lithium niobate electro-optic modulator at 1064 nm wavelength 1064nm波长高带宽cmos级集成薄膜铌酸锂电光调制器

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-19 DOI: 10.1016/j.optlastec.2025.113335

Boyu Zhang , Jiang Qu , Yuefei Weng , Wenbing Jiang , Jia Du , Xiao Chen , Weibiao Chen , Libing Zhou

{"title":"High-bandwidth CMOS-level integrated thin-film lithium niobate electro-optic modulator at 1064 nm wavelength","authors":"Boyu Zhang , Jiang Qu , Yuefei Weng , Wenbing Jiang , Jia Du , Xiao Chen , Weibiao Chen , Libing Zhou","doi":"10.1016/j.optlastec.2025.113335","DOIUrl":"10.1016/j.optlastec.2025.113335","url":null,"abstract":"<div><div>Integrated electro-optic modulators (EOMs), as fundamental optical components, are widely utilized in various photonic systems. High-performance EOMs based on thin-film lithium niobate (TFLN) have been extensively studied and optimized for the conventional telecommunication band around 1550 nm, exhibiting excellent performance metrics such as low optical loss, low half-wave voltage–length product (<span><math><msub><mi>V</mi><mrow><mi>π</mi></mrow></msub><mi>L</mi></math></span>), and high bandwidth. Nevertheless, emerging applications in high-power fiber lasers, optical frequency combs, and quantum communications urgently require specialized EOMs operating at the 1064 nm wavelength. Here, we report a TFLN EOM operating at 1064 nm. The device, with a compact 5 mm design, demonstrates a low <span><math><msub><mi>V</mi><mrow><mi>π</mi></mrow></msub></math></span> of 2.8 V and high electro-optic bandwidth of 38 GHz. Compared to commercially available 1064 nm bulk lithium niobate (LN) modulators, our EOM demonstrates a two-fold improvement in modulation efficiency, substantially enhanced bandwidth, and significantly reduced device length. This breakthrough provides a promising solution for future systems requiring 1064 nm modulation that demand miniaturization, high bandwidth, and low driving voltage simultaneously.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113335"},"PeriodicalIF":4.6,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313895","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

Verified comprehensive approach for the design of optically pumped Sub-Picosecond passively Mode-Locked VECSEL 验证了设计光抽运亚皮秒被动锁模VECSEL的综合方法

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-18 DOI: 10.1016/j.optlastec.2025.113343

Mohamad Javad Eshghi, Mohamad Hasan Yavari

{"title":"Verified comprehensive approach for the design of optically pumped Sub-Picosecond passively Mode-Locked VECSEL","authors":"Mohamad Javad Eshghi, Mohamad Hasan Yavari","doi":"10.1016/j.optlastec.2025.113343","DOIUrl":"10.1016/j.optlastec.2025.113343","url":null,"abstract":"<div><div>This paper presents a design method for the passively mode-locked Vertical External Cavity Surface Emitting Laser (VECSEL) combining the Haus master equation (HME) with the traveling wave model (TWM). In the traditional method for solving the HME using the split-step Fourier transform, the gain chip is considered as an operator in the frequency domain. However, this approach does not adequately address how variations in the pump power affect the laser output and carrier density. On the other hand, the TWM provides a detailed modeling of laser outputs and carrier density rates based on the parameters of the gain and absorber chips. However, this approach is not suitable for long-cavity configurations due to the exceptionally large processing volume required. The method introduced in this paper resolves this problem by coupling the HME with the TWM equations, thereby accurately determining how laser output and carrier density depend on parameters such as pump power and chip structure. In this regard, we designed a Z-type cavity configuration using this model to achieve a stable pulse train with a duration of 795 fs and an average output power of 900 mW, operating at a pulse repetition rate of 892.5 MHz corresponding to 1.13 kW peak power. This model can analyze the dynamics of the carrier density and output pulse of laser, as well as identify regions of pulse instability. To the best of our knowledge, this is the first demonstration of coupling the HME with TWM to achieve kilowatt peak power pulses in passively mode-locked VECSELs, while also investigating the effect of optical pump power on the formation of the output pulse and the rate of change of carrier density within the active medium and the SESAM.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113343"},"PeriodicalIF":4.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306830","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 an identical weak FBGs array sensor towards large-area flexible pressure sensing 面向大面积柔性压力传感的等效弱fbg阵列传感器研究

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-18 DOI: 10.1016/j.optlastec.2025.113372

Tiexin Zhang , Peijun Cong , Jing Jia , Ruida Liu , Jiatong Zhang , Wa Jin , Weihong Bi , Xinghu Fu , Guangwei Fu

{"title":"Research on an identical weak FBGs array sensor towards large-area flexible pressure sensing","authors":"Tiexin Zhang , Peijun Cong , Jing Jia , Ruida Liu , Jiatong Zhang , Wa Jin , Weihong Bi , Xinghu Fu , Guangwei Fu","doi":"10.1016/j.optlastec.2025.113372","DOIUrl":"10.1016/j.optlastec.2025.113372","url":null,"abstract":"<div><div>To simultaneously achieve the feature of high sensitivity, high precision and large-area in tactile sensing, a hollowed-out quadrangular prism structure flexible pressure sensor based on an identical weak fiber Bragg gratings (IWFBGs) array is proposed. The flexible packaging structure featuring a hollowed-out quadrangular prism was designed by finite element simulation, with the IWFBGs array embedded in the flexible silicone rubber to prepare the sensor. The pressure-induced reflection spectrum shifts of the IWFBGs array were analyzed using optical frequency domain reflectometry (OFDR) technology, and quantitative relationships between wavelength shifts and pressure were established through linear regression analysis. Experimental results demonstrated that the proposed sensor exhibits a sensitivity of up to 88.15 pm/N, with a low sensitivity error of ± 0.91 pm/N and a high-resolution pressure detection capability of 0.1 N. Additionally, by constructing a dynamic dual-parameter decoupling matrix, temperature–pressure crosstalk was effectively eliminated, reducing pressure demodulation errors by 99.17 % and significantly enhancing sensor reliability under temperature variations. The proposed sensor leverages the inherent multiplexing advantages of IWFBGs, demonstrating a novel pathway for deploying high sensitivity, high-precision, and large-area all-fiber tactile sensing networks in wearable bionic skins and adaptive intelligent surfaces.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113372"},"PeriodicalIF":4.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314020","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

Magneto-optic properties of the 128° Y-cut LiNbO3 by rotating its crystalline orientation 128°y形切割LiNbO3的磁光特性

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-18 DOI: 10.1016/j.optlastec.2025.113399

Xinbing Jiao, Wenpei Chen, Haipeng He

{"title":"Magneto-optic properties of the 128° Y-cut LiNbO3 by rotating its crystalline orientation","authors":"Xinbing Jiao, Wenpei Chen, Haipeng He","doi":"10.1016/j.optlastec.2025.113399","DOIUrl":"10.1016/j.optlastec.2025.113399","url":null,"abstract":"<div><div>LiNbO<sub>3</sub> is extensively researched for its diverse functional characteristics. LiNbO<sub>3</sub> is often used as an element in magnetic and optical sensors. However, its magneto-optic properties are seldom reported. Here, the Stokes parameters, Faraday and Kerr effects, transmittance, and reflectivity of the 128° Y-cut LiNbO<sub>3</sub> as it rotates from 0 to 360° are studied by PAX 5710 IR3 polarimeters. The magneto-optic properties of the 128° Y-cut LiNbO<sub>3</sub> are studied with linearly and circularly polarized laser beams. The findings indicate that the Stokes parameters, transmittance, and reflectivity of the 128° Y-cut LiNbO<sub>3</sub> are influenced by the rotation angle and magnetic fields. The adjusted R-square values of the transmittance of the 128° Y-cut LiNbO<sub>3</sub> irradiated by linearly and circularly polarized laser beams are 0.99773 and 0.80854, respectively. The Faraday effect observed in the 128° Y-cut LiNbO<sub>3</sub> with the linearly polarized laser beam suggests potential advancements in the design and analysis of magneto-optic optical devices.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113399"},"PeriodicalIF":4.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307207","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

Optical frequency domain reflectometer based on spectral segmented normalized cross correlation 基于光谱分割归一化互相关的光频域反射计

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-18 DOI: 10.1016/j.optlastec.2025.113392

Kaijun Liu , Guolu Yin , Yuyang Lou , Liuxi Chen , Tao Zhu

{"title":"Optical frequency domain reflectometer based on spectral segmented normalized cross correlation","authors":"Kaijun Liu , Guolu Yin , Yuyang Lou , Liuxi Chen , Tao Zhu","doi":"10.1016/j.optlastec.2025.113392","DOIUrl":"10.1016/j.optlastec.2025.113392","url":null,"abstract":"<div><div>Cross-correlation is an algorithm that sums the product of sliding data, commonly used to determine wavelength shift in the local Rayleigh scattering spectrum of optical frequency domain reflectometers. Due to the fluctuation of Rayleigh scattering intensity, additional noise can be introduced during the cross-correlation process. This effect is particularly pronounced in the high spatial resolution, the intensity distribution of the local Rayleigh scattering spectrum no longer exhibits statistical properties, leading to an imbalance in its Rayleigh distribution. Certain high-amplitude intensity points can introduce additional noise, and it will cause a significant reduction in the algorithm’s resistance to intensity fluctuations, which may result in fake peaks affecting the demodulation outcomes. This work introduces a segmented normalization cross-correlation algorithm to address the significant errors in traditional cross-correlation result. The major technical way is to reduce the influence of the local Rayleigh scattering spectrum intensity fluctuation through segmented normalization. This approach aims to diminish the intensity of fake peaks in the cross-correlation process, thereby mitigating large errors. Using the proposed algorithm, measurements with a spatial resolution of 3.2 mm were achieved at 3000 με, and the spatial resolution has been improved by 5.6 times compared to traditional cross-correlation demodulation algorithms.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113392"},"PeriodicalIF":4.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306831","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

Microsphere-assisted super-resolution optical imaging of oriented silver nanowire arrays with polarized light 偏振光定向银纳米线阵列的微球辅助超分辨光学成像

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-17 DOI: 10.1016/j.optlastec.2025.113383

Farid Mahfoud , Christophe Cordier , Sebastien Marbach , Michel Tschopp , Paul Montgomery , Olivier Felix , Matthias Pauly , Manuel Flury

{"title":"Microsphere-assisted super-resolution optical imaging of oriented silver nanowire arrays with polarized light","authors":"Farid Mahfoud , Christophe Cordier , Sebastien Marbach , Michel Tschopp , Paul Montgomery , Olivier Felix , Matthias Pauly , Manuel Flury","doi":"10.1016/j.optlastec.2025.113383","DOIUrl":"10.1016/j.optlastec.2025.113383","url":null,"abstract":"<div><div>Microsphere-assisted microscopy is a label-free imaging technique capable of surpassing the diffraction limit of conventional optical microscopes. This study investigates the imaging of oriented silver nanowire (AgNW) monolayers as a function of incident light polarization using a 30 μm diameter microsphere. Two types of AgNW arrays, fabricated by a “bottom-up” technique and e-beam lithography, are analyzed. Using a home-built optical microscope, the relationship between microsphere magnification and image contrast is explored to identify the optimal position for maximum contrast. The developed optical setup demonstrates at least a twofold resolution enhancement and permits to effectively visualize the optical anisotropy of nanostructured samples by tuning the polarization of incident light. These findings highlight the potential for further improvements in microsphere-assisted microscopy to achieve superior nanoscale resolution.</div><div>Topics: Microsphere-assisted microscopy, oriented silver nanowires, polarization, resolution enhancement.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113383"},"PeriodicalIF":4.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298305","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

Construction of the heterogeneous coating model and multi-physics coupling analysis in laser cleaning 激光清洗中非均质涂层模型的建立及多物理场耦合分析

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-17 DOI: 10.1016/j.optlastec.2025.113366

Zhe Li , Sijie Wang , Yaokun Pan , Jinzhao Sun , Fengshi Yin

{"title":"Construction of the heterogeneous coating model and multi-physics coupling analysis in laser cleaning","authors":"Zhe Li , Sijie Wang , Yaokun Pan , Jinzhao Sun , Fengshi Yin","doi":"10.1016/j.optlastec.2025.113366","DOIUrl":"10.1016/j.optlastec.2025.113366","url":null,"abstract":"<div><div>Traditional laser cleaning theories often simplify coatings as homogeneous materials, neglecting the impact of microdefects such as particles, pores, and cracks, which leads to significant discrepancies between theoretical analysis and actual results. To thoroughly investigate the physicochemical evolution characteristics of laser irradiation on non-homogeneous coatings and clarify the multi-effect coupling mechanisms at the interface during the cleaning process, this study constructs a multiphysics coupling model for laser cleaning incorporating particles, pits, and cracks, using finite element software. Ray tracing technology is combined to analyze the dynamic evolution of surface micro-mesoscopic heterogeneous features during the laser cleaning process and their regulation of heat transfer and stress distribution. Furthermore, through experimental verification, a multi-modal monitoring platform for laser cleaning (infrared thermal imager, microphone, and high-speed camera) is established to form a “thermal-acoustic-visual” multidimensional data chain for the quantitative characterization of energy transfer distribution and material response intensity. Through the deep coupling of models and experiments, this study reveals the regulatory mechanisms of microdefects on thermal-force coupling cleaning, providing important support for the refinement of laser cleaning fundamental theories and the scientific regulation of process optimization.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113366"},"PeriodicalIF":4.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298165","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

Relation between materials, process, structure and property of metallic porous bone scaffolds fabricated by laser powder bed fusion (LPBF): a review 激光粉末床融合制备金属多孔骨支架材料、工艺、结构与性能的关系

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-17 DOI: 10.1016/j.optlastec.2025.113377

Xu Shubo, Yang Xue, Hu Xinzhi, Liu Peng, Zhang Sen, Pan Yuefei, Ren Guocheng

{"title":"Relation between materials, process, structure and property of metallic porous bone scaffolds fabricated by laser powder bed fusion (LPBF): a review","authors":"Xu Shubo, Yang Xue, Hu Xinzhi, Liu Peng, Zhang Sen, Pan Yuefei, Ren Guocheng","doi":"10.1016/j.optlastec.2025.113377","DOIUrl":"10.1016/j.optlastec.2025.113377","url":null,"abstract":"<div><div>Currently, bone defects have become one of the major problems in clinical treatment, and there is an urgent need to find an ideal artificial bone. The ideal artificial bone should have good biocompatibility, excellent bioactivity, appropriate porous structure, and mechanical properties similar to those of bone tissue. The emergence of additive manufacturing (AM) technology offers the possibility to achieve customization of bone implants. Laser powder bed fusion (LPBF), a type of additive manufacturing, is widely used for the fabrication of porous metal stents due to its high energy density and molding quality. In this paper, the whole process of LPBF in porous metal scaffolds is described in detail, the applications and prospects of different metal materials in porous scaffolds are introduced, the influence of porous scaffold structure on scaffold performance is analyzed, the importance of process parameter selection is discussed as well as the influence on the microstructure and quality of the porous scaffolds, and the commonly used post-processing methods and biocompatibility are summarized and discussed after LPBF, including heat treatment, thermal isostatic pressing and surface modification to improve the optimal performance of porous scaffolds. Finally, the prospect of the development of porous metal scaffolds prepared by LPBF is envisioned.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113377"},"PeriodicalIF":4.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306829","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

Formation of high entropy alloy films on various substrates via pulsed laser deposition using a rotating multicomponent target 利用旋转多组分靶，通过脉冲激光沉积在各种衬底上形成高熵合金薄膜

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-06-17 DOI: 10.1016/j.optlastec.2025.113381

Yoji Miyajima , Hiroki Minowa , Daisuke Tanada , Pinaki Prasad Bhattacharjee , Stephen M. Lyth , Kazuhiro Ishikawa

{"title":"Formation of high entropy alloy films on various substrates via pulsed laser deposition using a rotating multicomponent target","authors":"Yoji Miyajima , Hiroki Minowa , Daisuke Tanada , Pinaki Prasad Bhattacharjee , Stephen M. Lyth , Kazuhiro Ishikawa","doi":"10.1016/j.optlastec.2025.113381","DOIUrl":"10.1016/j.optlastec.2025.113381","url":null,"abstract":"<div><div>High entropy alloys (HEAs) are a groundbreaking class of materials that present a challenge to traditional alloy design principles by combining multiple elements in near-equal proportions, giving rise to uniquely stable formulations. These can display exceptional mechanical, thermal, corrosion-resistant or gas-barrier properties, with potential transformative applications in various industrial sectors. Depositing high entropy alloy films (HEFs) could potentially extend these benefits to large area applications for a fraction of the cost of manufacturing bulk materials, but reliable techniques for this have yet to be developed commercially. Here, pulsed laser deposition (PLD) is used to create thin films of Cantor-like HEAs on glass, aluminum, and steel substrates. This is uniquely achieved using a rotating circular target made up of pure chromium, manganese, iron, cobalt and nickel sectors, avoiding the need for a bespoke bulk HEA target. The depths of the implanted HEFs range from ∼0.1 to 1.4 μm, and the thicknesses range from ∼0.1 to 0.8 μm, dependent on the chamber pressure and the substrate type, and the HEFs are found to act as effective barriers to oxygen permeation. This work offers a simple and effective route for the large area modification of different surfaces with e.g. improved gas barrier properties.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"191 ","pages":"Article 113381"},"PeriodicalIF":4.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298166","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