SPIE/SIOM Pacific Rim Laser Damage最新文献

Transient numerical simulation of the effect of dielectric particle contaminant on fused silica in high-power laser system 高功率激光系统中介质颗粒污染物对熔融石英影响的瞬态数值模拟

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3021295

rongqi shen

引用次数: 0

Yb3+/Tm3+ co-doped germanate-tellurite glass: conversion luminescent and temperature-sensing characteristics Yb3+/Tm3+ 共掺锗碲玻璃：转换发光和温度感应特性

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3015109

Yuwei Wu, Chunhui Niu

引用次数: 0

Influence of surface roughness on interfacial adsorption and laser ablation mechanisms of organic contaminants on fused silica 表面粗糙度对有机污染物在熔融石英上的界面吸附和激光烧蚀机制的影响

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3015007

Tingting Wang, Qingshun Bai, Wanmin Guo, Xujie Liu, Yuhai Li

{"title":"Influence of surface roughness on interfacial adsorption and laser ablation mechanisms of organic contaminants on fused silica","authors":"Tingting Wang, Qingshun Bai, Wanmin Guo, Xujie Liu, Yuhai Li","doi":"10.1117/12.3015007","DOIUrl":"https://doi.org/10.1117/12.3015007","url":null,"abstract":"The deleterious effects of organic contaminants on optical components are a major obstacle to high-energy laser systems, and laser ablation is an important means of removing contaminants. Nevertheless, irregularities or flaws created during the manufacturing process of optical element surfaces affect the absorption of organic contaminants while placing higher demands on laser ablation. Hence, it is imperative to comprehend the intricate interplay among surface roughness, contaminant absorption, and ablation in order to effectively confront the challenge of laser-induced damage. In this study, the three-dimensional morphology of the fused silica surface was simulated numerically employing the Weierstrass-Mandelbrot fractal function. On this basis, we developed a theoretical model through molecular dynamics simulations to gain insight into the adsorption process of dodecane organic molecules on fused silica surfaces. Building upon the obtained outcomes, the effect of surface roughness on the laser removal of the adsorbed model is comprehensively analyzed. The findings reveal that dodecane molecules tend to aggregate within enclosed crevices and irregular regions, resulting in heightened localized density. Additionally, an augmented substrate surface roughness diminishes van der Waals energy and pressure, thereby facilitating the elimination of contaminants. These findings are indispensable for deepening our understanding of the dynamic interactions involving lasers, fused silica, and organic contaminants, as well as providing valuable insights into effectively addressing the challenging issue of laser-induced damage.","PeriodicalId":197837,"journal":{"name":"SPIE/SIOM Pacific Rim Laser Damage","volume":"28 3","pages":"1298205 - 1298205-10"},"PeriodicalIF":0.0,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139163845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Resistance comparison of 45° incident angle NIR laser anti-reflection film coating with different materials 采用不同材料的 45° 入射角近红外激光减反射膜涂层的阻抗比较

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3018605

Yuanyuan Liu, Jianhua Chen, JIanqi Yuan, Jianing Dong, Baoyu Zhang

{"title":"Resistance comparison of 45° incident angle NIR laser anti-reflection film coating with different materials","authors":"Yuanyuan Liu, Jianhua Chen, JIanqi Yuan, Jianing Dong, Baoyu Zhang","doi":"10.1117/12.3018605","DOIUrl":"https://doi.org/10.1117/12.3018605","url":null,"abstract":"In view of the application requirements of optical elements with some incident angle in laser-related products, laser damage measurement were carried out on 1064nm anti-reflection films with an incident angle of 45° deposited with the commonly used film materials combination HfO2-SiO2 and film materials combination ZrO2-MgF2, and the resistance of laser induced damage of the two samples was compared. Two groups of experiments prepared with different film materials were carried out in evaporation coating equipment equipped vacuum pump without oil. Then we designed the film structure, formulated the process plan and got the sample respectively. LIDT of two samples were measured, and the results were analyzed and compared. The results show that the film deposited by the film materials combination ZrO2-MgF2 performed well when the process conditions were suitable for the materials. And the resistance of laser induced damage performed similar to the film materials combination HfO2-SiO2 under similar process conditions. The research about material ZrO2-MgF2 may be strengthened in the future.","PeriodicalId":197837,"journal":{"name":"SPIE/SIOM Pacific Rim Laser Damage","volume":"13 12","pages":"129820J - 129820J-4"},"PeriodicalIF":0.0,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139164362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-conjugate multi-peak hot-images induced by double defects in high power laser systems 高功率激光系统中双缺陷诱发的非共轭多峰值热图像

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3021222

Yuxin Liu, Zhaoyang Jiao, Hongchang Wang, Mingying Sun, Jianqiang Zhu

{"title":"Non-conjugate multi-peak hot-images induced by double defects in high power laser systems","authors":"Yuxin Liu, Zhaoyang Jiao, Hongchang Wang, Mingying Sun, Jianqiang Zhu","doi":"10.1117/12.3021222","DOIUrl":"https://doi.org/10.1117/12.3021222","url":null,"abstract":"In high-power laser systems, hot image is a phenomenon of drastic intensification on the downstream light field due to nonlinear Kerr self-focusing, which poses a threat to the safety of optical components. It is traditionally believed that a single defect will trigger a hot image, which appears at the downstream conjugate position of the defect relative to the nonlinear medium. Our previous study has shown that a phase defect can cause double-peak hot images when considering the defect edge steepness. When the number of defects increases, the downstream modulation becomes more complex. Here the evolution of the hot-image is analyzed when there are two symmetrical distributed super-Gaussian defects around the beam center for example. The results show that double defects will form five modulation peaks. The second and fourth peaks are the results of two single defects. Another three peaks are in the center of the beam, which do not appear in the case of single defect. The linear modulation peak is generated by the interaction of diffraction fringes from double defects and finally forms the first peak. The second and third strong peaks are caused by the interference between the second and fourth peaks, respectively. The characteristics of these three peaks are affected by the center spacing and size. The existence of these new strong modulation regions will pose a potential damage threat to the optical components at this position, so they need to be avoided when designing the arrangement of the components.","PeriodicalId":197837,"journal":{"name":"SPIE/SIOM Pacific Rim Laser Damage","volume":"36 11","pages":"1298209 - 1298209-7"},"PeriodicalIF":0.0,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139164779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thickness dependence of VO2 microstructure and phase transition properties deposited on ITO substrate 沉积在 ITO 基底上的 VO2 显微结构和相变特性与厚度的关系

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3021290

Lanxuan Zeng, Yuxuan Lei, Le Li, Yi Liu, Fan Ye, X. Cai, Aihua Zhong, Dongping Zhang

引用次数: 0

Investigation on the dynamic damage process of HfO2/SiO2 anti-reflection coatings under 1064nm nanosecond laser irradiation 1064 纳米纳秒激光辐照下 HfO2/SiO2 减反射涂层的动态损伤过程研究

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3016610

chengjiang xiang, Xiaofeng Liu, Chunxian Tao, Dawei Li, Yuanan Zhao, Jian Sun, Weili Zhang, Yuchuan Shao, Jianda Shao

{"title":"Investigation on the dynamic damage process of HfO2/SiO2 anti-reflection coatings under 1064nm nanosecond laser irradiation","authors":"chengjiang xiang, Xiaofeng Liu, Chunxian Tao, Dawei Li, Yuanan Zhao, Jian Sun, Weili Zhang, Yuchuan Shao, Jianda Shao","doi":"10.1117/12.3016610","DOIUrl":"https://doi.org/10.1117/12.3016610","url":null,"abstract":"Time-resolved pump-probe technology is an effective method to study the dynamic damage process of optics. In this paper, the dynamic damage process of HfO2/SiO2 anti-reflection coating, for the cases that the coating located on the laser incidence (forward process) and exit (reverse process) surface, irradiated by a 1064nm nanosecond laser was studied based on the time-resolved pump-probe technology of intensified charge-coupled device (ICCD). Under the irradiation of the same fluence (52J/cm2), pits without and with the layer peeling existed in both forward and reverse processes. However, the lateral size and depth of the small pits generated by the reverse process are larger than those of the forward process. The finite element analysis shows that the electric field intensity (EFI) on the substrate-coating interface for the forward and reverse processes is similar, which is not enough to form the difference in damage morphology. These results indicate the develop process of the plasma after its formation under the subsequent laser pulse irradiation determines the damage difference in the above two cases. The time-resolved study of anti-reflective coating damage is of great significance for its damage mechanism analysis and practical application.","PeriodicalId":197837,"journal":{"name":"SPIE/SIOM Pacific Rim Laser Damage","volume":"67 8","pages":"129820A - 129820A-6"},"PeriodicalIF":0.0,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139165188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of multiple contaminant components on spectral performance of reflective mirrors in resonance ionization spectroscopy 多种污染物成分对共振电离光谱中反射镜光谱性能的影响

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3021194

Yulin Zhang, Yanzhi Wang, Yugang Jiang, Jianda Shao, Zhizhong Zhang

引用次数: 0

Simulation study on laser damage threshold of optical window materials 光学窗口材料激光损伤阈值模拟研究

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3016378

Jixing Cai, Yunpeng Wang, Tianyu Cui, Yue Zhou, Jingxuan Qiu, Tianyi Cui

引用次数: 0

Experimental investigation of laser induced breakdown thresholds for bulk water 块状水激光诱导击穿阈值的实验研究

SPIE/SIOM Pacific Rim Laser Damage Pub Date : 2023-12-22 DOI: 10.1117/12.3021218

Ruizhi Fan, Yuwei Tian, Yuanghang Wang, Yun He, Linyuan Cao, Zhixing Gao

引用次数: 0