Optical Frontiers最新文献_第3页

Thermodynamic effects of pulsed laser multilayer thin film etching 脉冲激光多层薄膜刻蚀的热力学效应

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2683889

Xiaoli Liu, Licheng Zhou, Wending Liu, Yifan Zhou, Y. Xiong, JiZhou Wang

{"title":"Thermodynamic effects of pulsed laser multilayer thin film etching","authors":"Xiaoli Liu, Licheng Zhou, Wending Liu, Yifan Zhou, Y. Xiong, JiZhou Wang","doi":"10.1117/12.2683889","DOIUrl":"https://doi.org/10.1117/12.2683889","url":null,"abstract":"The impact of the interface effect on the etching accuracy of a non-single-layer structure was utilized as a starting point in this work to analyze the correlation between the integrated structure's film surface/interface temperature field, stress field distribution, and interface mutation. Based on single-factor etching experiments, the relationship between the temperature field, stress field, and laser characteristic parameters was evaluated via a combination of theoretical analysis and numerical simulation. For polyimide-based metal aluminum film, a connection between scanning speed and etching characteristic parameters was discovered. The results illustrate that when Al/PI (aluminum film thickness of 2μm) was irradiated by a laser, the interface temperature reached a certain value, which caused distortion of the film and substrate. Changes in the distribution of the temperature and stress fields of the film affect the heat transfer in the system and thus affect the thermodynamic trajectory, thermal feedback, etching rate, and shape of the target film surface. Ultimately, the etching and removal of the Al/PI integration of the non-single-layer structure are attributed to the interplay of thermal and stress field effects.","PeriodicalId":184319,"journal":{"name":"Optical Frontiers","volume":"180 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128827717","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

Fast high-resolution imaging combining deep learning and single-pixel imaging 结合深度学习和单像素成像的快速高分辨率成像

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2684974

X. Liu, Zilong Li, Jiaqing Dong, Guijun Wang, Wenhua Zhong, Qiegen Liu, Xianlin Song

{"title":"Fast high-resolution imaging combining deep learning and single-pixel imaging","authors":"X. Liu, Zilong Li, Jiaqing Dong, Guijun Wang, Wenhua Zhong, Qiegen Liu, Xianlin Song","doi":"10.1117/12.2684974","DOIUrl":"https://doi.org/10.1117/12.2684974","url":null,"abstract":"In the traditional Fourier single-pixel imaging (FSPI), compressed sampling is often used to improve the acquisition speed. However, the reconstructed image after compressed sampling often has a lower resolution and the quality is difficult to meet the imaging requirements of practical applications. To address this issue, we proposed a novel imaging method that combines deep learning and single-pixel imaging, which can reconstruct high-resolution images with only a small-scale sampling. In the training phase of the network, we attempted to incorporate the physical process of FSPI into the training process. To achieve this objective, a large number of natural images were selected to simulate Fourier single-pixel compressed sampling and reconstruction. The compressed reconstructed samples were subsequently employed for network training. In the testing phase of the network, the compressed reconstruction samples of the test dataset were input into the network for optimization. The experimental results showed that compared with traditional compressed reconstruction methods, this method effectively improved the quality of reconstructed images.","PeriodicalId":184319,"journal":{"name":"Optical Frontiers","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114321105","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

Active modulation of multiple metamaterial induced transparences in terahertz region 多超材料在太赫兹区诱导透明的有源调制

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2683140

Huiwen Shi, Longyu Shi, Xuteng Zhang, Pujing Zhang, Jinyu Chen, Mengyuan Wang, Huijuan Sun, Qing-li Zhou, Cunlin Zhang

引用次数: 0

Visible nonlinear stimulated scatterings generated in a carbon disulfide filled microbubble cavity 二硫化碳填充微泡腔中产生的可见非线性受激散射

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2685005

Longxiang Chen, Zhenlin Zhao, Zixiang Fu, Hao Lin, Tianhe Wu, S. Xie, Qijing Lu

引用次数: 0

Infrared background spectral radiance analysis of limb observation based on satellite observation data 基于卫星观测数据的翼面观测红外背景光谱辐射度分析

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2684729

J. Bai, Lu Bai, Chao Huang

引用次数: 0

Research on hollow-core terahertz fiber based on anti-resonant Bragg structure elements 基于抗谐振Bragg结构元件的空心太赫兹光纤研究

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2684783

Jin-long Ding, Ming-Yang Chen, L. Ding, Zhengqiu Dong

引用次数: 0

Simultaneous measurement method of six-degree-of-freedom absolute position and attitude based on light spots 基于光点的六自由度绝对位置和姿态同时测量方法

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2684020

Ruimao Ma, Jianquan Zhang, Wenbo Dong, Jiaqi Yu, Jiancheng Liu, W. Ge, Jianguo He, Meng Yu, Aimin Xiao

{"title":"Simultaneous measurement method of six-degree-of-freedom absolute position and attitude based on light spots","authors":"Ruimao Ma, Jianquan Zhang, Wenbo Dong, Jiaqi Yu, Jiancheng Liu, W. Ge, Jianguo He, Meng Yu, Aimin Xiao","doi":"10.1117/12.2684020","DOIUrl":"https://doi.org/10.1117/12.2684020","url":null,"abstract":"This article presents a novel method to simultaneously measure the six-degree-of-freedom (6-DOF) absolute position and attitude based on light spots. The proposed system consists of a measurement unit and a moving target: the measurement unit contains a laser, three cube corner retroreflectors (CCR), three CMOSs, and some beam splitters; the target is a cube with three CCRs installed on each of its three orthogonal planes. In the measurement unit, the laser is split into three reference lights as well as three measured lights which are detected by three CMOSs after returning from six CCRs. Based on the vector analysis of the optical path, the relationship between 6-DOF position and attitude of the moving target and the output coordinates of three CMOSs is established. This method is capable of simultaneously measuring translational motions along as well as rotational motions around three orthogonal axes and achieving the absolute positioning of the target, which has overcome the shortage that the measurement systems based on laser interference can not measure absolute position and attitude. The accuracy of this method has been verified by Monte Carlo stochastic simulation and sinusoidal trajectory simulation in the range of the target’s motion. The simulation results show that the errors of position are less than 0.5 μm and the errors of attitude are less than 2.3 ″, which indicates the algorithm error is no more than the minimum pixel size of CMOS. This 6-DOF absolute pose simultaneous measurement method with simplicity and high precision has great potential for application in various precision machining fields.","PeriodicalId":184319,"journal":{"name":"Optical Frontiers","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131612501","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

Active and passive modulation of dual metamaterial induced transparency in terahertz regime 双超材料诱导太赫兹透明的有源和无源调制

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2683535

Xuteng Zhang, Yuwang Deng, Longyu Shi, Huiwen Shi, Pujing Zhang, Z. Wang, Qing-li Zhou, Cunlin Zhang

{"title":"Active and passive modulation of dual metamaterial induced transparency in terahertz regime","authors":"Xuteng Zhang, Yuwang Deng, Longyu Shi, Huiwen Shi, Pujing Zhang, Z. Wang, Qing-li Zhou, Cunlin Zhang","doi":"10.1117/12.2683535","DOIUrl":"https://doi.org/10.1117/12.2683535","url":null,"abstract":"Metamaterial induced transparency (MIT) has shown great application potential in terahertz regime, which is of great significance in constructing photonic components such as slow light systems and tunable filters. The single or multiple transparent windows can be induced through near-field coupling via two or more resonant modes. Compared with the single MIT, multi-MIT effect can realize multiband sensing, communication, and storage applications. Here, we design a dual-MIT metastructure composed of three bright resonators including a cut-wire resonator (CWR), a pair of large toroidal split ring resonators (LTSRRs), and a pair of small toroidal split ring resonators (STSRRs). Dual-MIT windows can be induced through coupling between the electric dipole resonance and two inductance capacitance (LC) resonances. By optimizing and adjusting the geometric parameters of the metasurface, the resonant strength could be suppressed or enhanced. Thus, we can passively manipulate the frequency and amplitude of the dual-MIT windows and realize the switching between the two windows and single MIT. In addition, by actively tuning the conductivity of photosensitive Si introduced in the gap of the LTSRRs and STSRRs, we observe the LC resonance can be weakened to quench the dual-MIT windows. Our research provides an approach to explore the miniaturized, multi-functional, and switching components in terahertz regime.","PeriodicalId":184319,"journal":{"name":"Optical Frontiers","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125354145","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

Study on obtaining rotation temperature by using the relative intensity of the CN spectrum in the ultraviolet band 利用紫外光波段CN光谱的相对强度获得旋转温度的研究

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2684746

Mengjun Sun, Lu Bai, Dan-meng Zhang, Huigang Shi

引用次数: 0

Research on strain testing based on binocular stereo vision 基于双目立体视觉的应变测试研究

Optical Frontiers Pub Date : 2023-05-31 DOI: 10.1117/12.2684063

Wenyong Lu, Y. Shi, Zhan Jin, Weijie Luo, Jing Chen, Jiajie He

引用次数: 0