Optics and Laser Technology最新文献_第9页

Three-dimensional reconstruction precision estimation in multi-view measurement systems

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-25 DOI: 10.1016/j.optlastec.2025.112494

Jinke Huang, Xinxing Shao

{"title":"Three-dimensional reconstruction precision estimation in multi-view measurement systems","authors":"Jinke Huang, Xinxing Shao","doi":"10.1016/j.optlastec.2025.112494","DOIUrl":"10.1016/j.optlastec.2025.112494","url":null,"abstract":"<div><div>The multi-view three-dimensional (3D) reconstruction method is extensively employed across diverse scientific and engineering domains due to its inherent advantages of flexible system configuration and comprehensive view information. While previous research has extensively studied error and uncertainty in the multi-view system, there is a notable gap in understanding the influence of the number of views on the precision of 3D reconstruction. This paper presents a pioneering investigation of the relationship between the number of views and the precision of 3D reconstruction in multi-view systems. Concise precision estimation formulas are derived in normal and convergent camera configurations. Our most significant contribution lies in the novel discovery of the negative power relationship between the precision of 3D reconstruction and the number of views, substantiated by theoretical derivation, numerical simulations, and real experiments. Consequently, our precision estimation formulas and precision law enable the estimation of 3D reconstruction precision without cumbersome calibration processes. This advancement enhances the flexibility and designability of the multi-view 3D reconstruction technique, enabling it to better meet the diverse measurement demands encountered in various fields.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112494"},"PeriodicalIF":4.6,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143149676","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

Microstructure and surface properties of WC reinforced Ti6Al4V composite coating by laser direct deposition

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-25 DOI: 10.1016/j.optlastec.2025.112488

Nuonuo Cui, Guili Yin, Zhi Zheng, Shuoxun Wang, Zhanqi Liu, Xueting Chen, Xiaoou Zhu

{"title":"Microstructure and surface properties of WC reinforced Ti6Al4V composite coating by laser direct deposition","authors":"Nuonuo Cui, Guili Yin, Zhi Zheng, Shuoxun Wang, Zhanqi Liu, Xueting Chen, Xiaoou Zhu","doi":"10.1016/j.optlastec.2025.112488","DOIUrl":"10.1016/j.optlastec.2025.112488","url":null,"abstract":"<div><div>WC particle-reinforced Ti6Al4V composite coatings were prepared on Ti6Al4V substrates by laser direct deposition using Ti6Al4V alloy powders containing 3 wt%, 6 wt% and 9 wt% WC. The microstructure and properties of the deposited coatings with different WC additions were studied separately using metallographic microscopy, scanning electron microscopy, X-ray diffraction, microhardness tests, abrasion tests, and electrochemical workstation. The results showed that the composite coatings with WC addition were mainly composed of α-Ti, β-Ti, unmelted WC and in-situ produced new phases such as TiC, W<sub>2</sub>C and (W,Ti)C<sub>1-x</sub>. A reaction layer composed of W<sub>2</sub>C and TiC was formed on the periphery of WC. The formation of high microhardness strip and block α-(Ti,N) interstitial solid solution at the top of the coatings was attributed to the occurrence of N-rich regions by N element segregation. The N element and unmelted WC played important roles in improving the microhardness and wear resistance of coatings by in-situ solution strengthening and refining microstructure, respectively. Compared with the Ti6Al4V substrate, the average microhardness of the coating with 6 % WC addition increased by about 57.8 %, the wear rate decreased by 72.1 %, and the roughness of the worn surface was the smallest. Moreover, the addition of WC has little contribution to improving the corrosion resistance of the coating, only the coating with 6 % WC has better corrosion resistance compared with the Ti6Al4V substrate. Therefore, 6 % WC is the optimal addition amount for improving coating performance.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112488"},"PeriodicalIF":4.6,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143150041","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

Adaptive DoFP polarization image demosaicking based on local gradient and channel correlation

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-24 DOI: 10.1016/j.optlastec.2025.112495

Jianguo Yang, Weiqi Jin, Li Li, Dian Sheng, Meishu Wang

{"title":"Adaptive DoFP polarization image demosaicking based on local gradient and channel correlation","authors":"Jianguo Yang, Weiqi Jin, Li Li, Dian Sheng, Meishu Wang","doi":"10.1016/j.optlastec.2025.112495","DOIUrl":"10.1016/j.optlastec.2025.112495","url":null,"abstract":"<div><div>With the advancement of nanotechnology, division-of-focal-plane (DoFP) polarization imaging systems with real-time imaging capabilities have emerged as a significant research area, advancing the application potential of miniaturized polarization imaging systems. Nonetheless, the superpixel structures within these systems can introduce instantaneous field-of-view (IFoV) errors, which affect the quality of polarization image reconstruction and the accuracy of polarization information calculations. Most existing polarization image demosaicking methods based on channel correlation assume uniform scene distribution, utilizing fixed weights or thresholds. This reliance produces poor robustness across various scenes, making these methods less suitable for practical applications. To address these limitations, this paper proposes an adaptive DoFP polarization image demosaicking method based on local gradient and channel correlation (ALGPCC). Specifically, the method first employs local gradient optimization on the traditional bilinear interpolation method to produce a high-quality initial demosaicked image. Next, it combines normalized cross-correlation with guided filtering to create adaptive polarization channel correlation weights, allowing for dynamic adjustment based on the polarization characteristics of various scenes. Finally, these adaptive weights are applied to a polarization channel difference model, further improving the demosaicking results and effectively reducing IFoV errors. Experimental results with synthetic and real DoFP polarization images demonstrate that the proposed method significantly surpasses existing demosaicking methods in objective metrics and visual quality, showing superior performance across various scenes and offering notable advantages in processing speed.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112495"},"PeriodicalIF":4.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143149677","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

Experimental study and numerical modelling on multi-pulse laser ablation of aluminium with femtosecond laser

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-24 DOI: 10.1016/j.optlastec.2025.112481

Luis Omeñaca, Santiago Miguel Olaizola, Ainhara Rodríguez, Mikel Gomez-Aranzadi, Isabel Ayerdi, Enrique Castaño

{"title":"Experimental study and numerical modelling on multi-pulse laser ablation of aluminium with femtosecond laser","authors":"Luis Omeñaca, Santiago Miguel Olaizola, Ainhara Rodríguez, Mikel Gomez-Aranzadi, Isabel Ayerdi, Enrique Castaño","doi":"10.1016/j.optlastec.2025.112481","DOIUrl":"10.1016/j.optlastec.2025.112481","url":null,"abstract":"<div><div>An experimental and fundamental study of aluminium ablation using multi-pulse ultrashort laser irradiation at a wavelength of <span><math><mrow><mn>1.032</mn><mi>μ</mi><mi>m</mi></mrow></math></span> and a pulse duration of <span><math><mrow><mn>280</mn><mi>f</mi><mi>s</mi></mrow></math></span> has been carried out. Experiments were performed with different fluences and pulse numbers, and measurements were taken for both ablation depths and diameters. The theoretical investigation proposes a new way to account for incubation in the material based on the experimental measurements obtained. Subsequently, the development of the one-dimensional Two-Temperature Model (TTM) was carried out, which includes the dynamic evolution of the thermophysical and optical properties as well as the incubation effect and the different ablation regimes for multi-pulse. The experimentally measured depth values and those obtained by the developed model are in close agreement for ablation depth across the entire range of fluences studied, therefore, this model provides a reliable tool for determining ablation depths even before material processing begins.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112481"},"PeriodicalIF":4.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143149279","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

A 48-tupling millimeter-wave re-modulation generation scheme based on a cascade of two DPMZMs

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-24 DOI: 10.1016/j.optlastec.2025.112510

Lei Ren , Dongfei Wang , Hu Zhang , Zihao Wu , Xiaokun Yang , Xiangqing Wang

{"title":"A 48-tupling millimeter-wave re-modulation generation scheme based on a cascade of two DPMZMs","authors":"Lei Ren , Dongfei Wang , Hu Zhang , Zihao Wu , Xiaokun Yang , Xiangqing Wang","doi":"10.1016/j.optlastec.2025.112510","DOIUrl":"10.1016/j.optlastec.2025.112510","url":null,"abstract":"<div><div>In this paper, a filterless system based on a cascade of two DPMZMs is proposed to generate a frequency 48-tupling millimeter wave signal. A 5 GHz radio frequency (RF) signal drives two cascaded double parallel MZMs (DPMZM). In DPMZM-1, two Mach-Zehnder modulators (MZMs) connected in parallel are used to generate 40 GHz RF signals for re-modulation, and after a DC block to isolate the DC component generated by the beat frequency, it enters DPMZM-2 again for modulation, and the desired 48-tupling MMW signals can be obtained at the end. Based on the simulation results, the effects of non-ideal factors such as MZM extinction ratio (ER) and modulation coefficient deviation on the system’s stability are analyzed, and a tolerable range is given. Theoretical analysis and simulation experiments are carried out for the scheme proposed in this paper, and the experimental results show that the optical sideband suppression ratio (OSSR) and radio frequency sideband suppression ratio (RFSSR) are 25.6174 dB and 20 dB, respectively. The simulation results are consistent with the theoretical analysis, proving the scheme’s feasibility. In addition, the transmission performance of the system generating a 2.5 Gbps baseband signal modulated on an MMW signal over 10 km of optical fiber is also verified, with a loss of 0.4 dBm at a bit error rate of 10<sup>−9</sup> compared to BTB transmission.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112510"},"PeriodicalIF":4.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143150797","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

Dynamically tunable optical lattice based on optics and magnetism with nitrogen-vacancy center in diamond

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-24 DOI: 10.1016/j.optlastec.2025.112508

Yangxin Gu , Feng Wen , Muhua Zhai , Huapeng Ye , Shaowei Zhang , Zhenkun Wu , Dong Zhong , Yuxiang Du , Zhuohui Zhang , Wei Wang , Yang Lei , Yanpeng Zhang , Hongxing Wang

{"title":"Dynamically tunable optical lattice based on optics and magnetism with nitrogen-vacancy center in diamond","authors":"Yangxin Gu , Feng Wen , Muhua Zhai , Huapeng Ye , Shaowei Zhang , Zhenkun Wu , Dong Zhong , Yuxiang Du , Zhuohui Zhang , Wei Wang , Yang Lei , Yanpeng Zhang , Hongxing Wang","doi":"10.1016/j.optlastec.2025.112508","DOIUrl":"10.1016/j.optlastec.2025.112508","url":null,"abstract":"<div><div>Traditional optical lattices in atomic ensembles of alkali metal atoms with tunable refractive index have been achieved. However, these optical lattices are often limited by large-scale settings and specific temperature conditions, which restrict their practical applications. This study introduces a room-temperature tunable optical lattice within microscale diamond nitrogen-vacancy (NV) centers that may overcome these disadvantages and enable lots of promising applications. Here, the optical properties of the optical lattice, i.e., the amplitude-type and phase-type lattices, can be effectively and dynamically modulated by optical and magnetic methods. It is found that in the optical modulation, an equivalent zero- and first-order diffraction intensity is achieved in the far field by manipulating the photon detuning of the probe field. Additionally, we also demonstrate that the eigenvalues of the hyperfine energy levels vary with changes in magnetic field strength, resulting in a controllable higher order diffraction of the probe field. Furthermore, considering the lattice-forming field in a resonant condition, the modulation region where the higher order diffraction of the probe field can be obtained is broader than previous research, exhibiting a more significant flexibility. The dynamic tunability of these lattices is pivotal for expanding the control and application of NV centers in diamond and may find applications in optical networking and communication technologies.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112508"},"PeriodicalIF":4.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143149280","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

Process parameter optimization for laser directed energy deposition B4C/Al neutron absorbing material via Taguchi method

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-23 DOI: 10.1016/j.optlastec.2025.112507

Weiwei Xiao , Yilong Liu , Jinghao Huang , Shuliang Zou , Zhenghao Ren , Shihong Liu , Yanli Wang

{"title":"Process parameter optimization for laser directed energy deposition B4C/Al neutron absorbing material via Taguchi method","authors":"Weiwei Xiao , Yilong Liu , Jinghao Huang , Shuliang Zou , Zhenghao Ren , Shihong Liu , Yanli Wang","doi":"10.1016/j.optlastec.2025.112507","DOIUrl":"10.1016/j.optlastec.2025.112507","url":null,"abstract":"<div><div>In this study, the fabrication process parameters of laser directed energy deposition (LDED) B<sub>4</sub>C/Al composites that can achieve the maximum relative density were obtained via Taguchi method. The single-track experiments were employed to determine the appropriate range of laser power, scanning speed, powder feeding speed and protective gas flow rate. Based on the values of these process parameters, an L<sub>16</sub> orthogonal experiment was designed using the Taguchi method, and the signal-to-noise (S/N) ratio analysis and analysis of variance (ANOVA) were performed to obtain the LDED process parameters that can achieve the B<sub>4</sub>C/Al composites with maximum relative density. And the regression equation and fabrication of bulk composite were adopted to verify the effectiveness of the optimized process parameters. The optimal combination of process parameters was laser power of 1600 W, scanning speed of 350 mm/min, powder feeding speed of 2.0 r/min, and protective gas flow rate of 8.5 L/min. This study will help to establish an effective process for fabricating B<sub>4</sub>C/Al composite using LDED.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112507"},"PeriodicalIF":4.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143150268","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

A four-primary-color healthy display system designed with multi-objective genetic algorithms based on user age and application scenarios

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-23 DOI: 10.1016/j.optlastec.2025.112514

Shanrong Ke , Qiuxue Kuang , Yi Lin , Linyu Ye , Kaiyu Yang , Zhong Chen , Meibin Yao , Yaling Chai , Ziquan Guo

{"title":"A four-primary-color healthy display system designed with multi-objective genetic algorithms based on user age and application scenarios","authors":"Shanrong Ke , Qiuxue Kuang , Yi Lin , Linyu Ye , Kaiyu Yang , Zhong Chen , Meibin Yao , Yaling Chai , Ziquan Guo","doi":"10.1016/j.optlastec.2025.112514","DOIUrl":"10.1016/j.optlastec.2025.112514","url":null,"abstract":"<div><div>We used age-related blue light hazard efficacy of radiation and melanopic efficacy of luminous radiation as primary metrics for evaluating the photobiological safety of LED display system. Additionally, we developed a perceived brightness model based on pupil diameter and age, which can be widely applied in spectral optimization and brightness adjustment for healthy LED display systems. In this proposed method, a RGGB-based four-primary-color LED display system was chosen as the research object. Through multi-objective genetic algorithm calculations, we obtained the optimal combinations of peak wavelength and full-width at half maximum of LEDs considering the stereoscopic color gamut to evaluate the color rendering capability of display systems simultaneously. Based on both visual and non-visual metrics, we optimized the white LED spectra for different age groups of users in two different scenarios (office and leisure), and inferred suitable screen brightness ranges for LED display system. In addition, we established a facial image database to identify user age information for the actual applications. This study provides an intelligent design solution for healthy displays, applicable to users of various ages and application scenarios.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112514"},"PeriodicalIF":4.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143149281","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

Rapidly and widely repetition-rate-tunable free-running dual-comb fiber laser with a bidirectional polarization-multiplexing configuration

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-23 DOI: 10.1016/j.optlastec.2025.112430

Bowen Liu , Maolin Dai , Yifan Ma , Takuma Shirahata , Shinji Yamashita , Sze Yun Set

{"title":"Rapidly and widely repetition-rate-tunable free-running dual-comb fiber laser with a bidirectional polarization-multiplexing configuration","authors":"Bowen Liu , Maolin Dai , Yifan Ma , Takuma Shirahata , Shinji Yamashita , Sze Yun Set","doi":"10.1016/j.optlastec.2025.112430","DOIUrl":"10.1016/j.optlastec.2025.112430","url":null,"abstract":"<div><div>Repetition-rate-tunable fiber lasers are practical in addressing aliasing issue and exploring optimization parameters for dual-comb metrology and 3D surface profilometry. However, the tuning speed of typical delay lines is not very high, which limits the frame rate. Meanwhile, wide-range tunability is desired to extend non-ambiguity distances and eliminate dead zones. Here, we developed a dual-comb fiber laser based on a resonate piezoelectric motorized delay line that shows a tuning speed up to 493.5 kHz/s over 329-kHz tuning range, which is the fastest to the best of our knowledge. Benefiting from the mechanically shared polarization-maintaining oscillator, the proposed laser is stable with low crosstalk in full free-running, while this bidirectional polarization multiplexing configuration endows good flexibility and tunability. Consequently, the 1-hour variation of repetition rate difference is 0.52 Hz, with a standard deviation of 0.10 Hz. The dual combs are further pulled closer to 184.5 Hz by roughly compensating for fiber length. These results demonstrate a promising solution for developing accordion-comb seed light sources that can contribute to dual-comb metrology and 3D surface profilometry.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112430"},"PeriodicalIF":4.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143150036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effect of interfacial temperature on the bonding morphology and fracture mechanism of TC4-CFRTP laser bonding joints with polymer interlayer

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-01-22 DOI: 10.1016/j.optlastec.2025.112463

Yu Zhang, Fuji Wang, Qi Wang

{"title":"Effect of interfacial temperature on the bonding morphology and fracture mechanism of TC4-CFRTP laser bonding joints with polymer interlayer","authors":"Yu Zhang, Fuji Wang, Qi Wang","doi":"10.1016/j.optlastec.2025.112463","DOIUrl":"10.1016/j.optlastec.2025.112463","url":null,"abstract":"<div><div>Carbon fiber reinforced thermoplastic composites (CFRTP) and TC4 are widely utilized in aerospace. Incorporating a polymer interlayer during laser bonding of CFRTP/TC4 stacked structures enhances joint performance. However, challenges such as thermal defects and poor bonding at the interface persist. In this paper, the effect of interfacial temperature characteristics on the performance of joints containing polymer layer is systematically analyzed in conjunction with the peak interfacial temperature and its distribution, as well as the polymer melting time. The interfacial temperature characteristics with different powers and their effects on joint mechanical property, bonding morphology, and fracture mechanism, were analyzed through laser joining experiments and temperature field simulations. And the optimal temperature conditions for achieving the high-quality joint were determined. Results indicated that different temperature conditions directly lead to different bonding morphologies and fracture forms. The nonuniform distribution of interface temperature within the laser scanning area causes different fracture forms to occur simultaneously in the joint. Low interfacial peak temperatures and insufficient polymer melting times lead to poor bonding at the interlayer/CFRTP interface, causing failure; Under optimal temperature conditions, the mechanical anchoring structure at the TC4/interlayer interface is unable to withstand shear force, resulting in failure by fracture; When the interfacial peak temperature significantly exceeds the polymer’s decomposition temperature, thermal defects cause stress concentration and lead to failure. The temperature conditions for achieving an optimal joint include a peak temperature of 440 °C, a polymer melting time of 9 s, and as uniform an interface temperature distribution as possible.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"184 ","pages":"Article 112463"},"PeriodicalIF":4.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143150282","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