{"title":"Intracavity spherical aberration for selective generation of single-transverse-mode Laguerre-Gaussian output with order up to 95","authors":"Q. Sheng, Aihua Wang, Yuanyuan Ma, Sijia Wang, Meng Wang, Zheng Shi, Junjie Liu, Shijie Fu, W. Shi, Jianquan Yao, T. Omatsu","doi":"10.1186/s43074-022-00050-8","DOIUrl":"https://doi.org/10.1186/s43074-022-00050-8","url":null,"abstract":"","PeriodicalId":93483,"journal":{"name":"PhotoniX","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"65801147","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}
Pub Date : 2022-01-11DOI: 10.21203/rs.3.rs-1236950/v1
Huanyu Sun, Shiling Wang, Xiao-Xiang Hu, Hongjie Liu, Xiaoyan Zhou, Jin Huang, Xinglei Cheng, Feng Sun, Yubo Liu, Dong Liu
Surface defects (SDs) and subsurface defects (SSDs) are the key factors decreasing the laser damage threshold of optics. Due to the spatially stacked structure, accurately detecting and distinguishing them has become a major challenge. Herein a detection method for SDs and SSDs with multisensor image fusion is proposed. The optics is illuminated by a laser under dark field condition, and the defects are excited to generate scattering and fluorescence lights, which are received by two image sensors in a wide-field microscope. With the modified algorithms of image registration and feature-level fusion, different types of defects are identified and extracted from the scattering and fluorescence images. Experiments show that two imaging modes can be realized simultaneously by multisensor image fusion, and HF etching verifies that SDs and SSDs of polished optics can be accurately distinguished. This method provides a more targeted reference for the evaluation and control of the defects of optics, and exhibits potential in the application of material surface research.
{"title":"Detection of surface defects and subsurface defects of polished optics with multisensor image fusion","authors":"Huanyu Sun, Shiling Wang, Xiao-Xiang Hu, Hongjie Liu, Xiaoyan Zhou, Jin Huang, Xinglei Cheng, Feng Sun, Yubo Liu, Dong Liu","doi":"10.21203/rs.3.rs-1236950/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-1236950/v1","url":null,"abstract":"Surface defects (SDs) and subsurface defects (SSDs) are the key factors decreasing the laser damage threshold of optics. Due to the spatially stacked structure, accurately detecting and distinguishing them has become a major challenge. Herein a detection method for SDs and SSDs with multisensor image fusion is proposed. The optics is illuminated by a laser under dark field condition, and the defects are excited to generate scattering and fluorescence lights, which are received by two image sensors in a wide-field microscope. With the modified algorithms of image registration and feature-level fusion, different types of defects are identified and extracted from the scattering and fluorescence images. Experiments show that two imaging modes can be realized simultaneously by multisensor image fusion, and HF etching verifies that SDs and SSDs of polished optics can be accurately distinguished. This method provides a more targeted reference for the evaluation and control of the defects of optics, and exhibits potential in the application of material surface research.","PeriodicalId":93483,"journal":{"name":"PhotoniX","volume":" ","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2022-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47654335","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}
Pub Date : 2021-11-16DOI: 10.1186/s43074-021-00045-x
Chong Li, Xiang Zhang, Jingwei Li, Tao Fang, Xiaowen Dong
{"title":"Correction to: The challenges of modern computing and new opportunities for optics","authors":"Chong Li, Xiang Zhang, Jingwei Li, Tao Fang, Xiaowen Dong","doi":"10.1186/s43074-021-00045-x","DOIUrl":"https://doi.org/10.1186/s43074-021-00045-x","url":null,"abstract":"","PeriodicalId":93483,"journal":{"name":"PhotoniX","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48535565","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}
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