| Laser-induced damage and periodic stripe structures of a CaF2 single crystal by an ArF excimer laser |
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| 作者姓名： | 邵景珍 梁勖 游利兵 潘宁 林颖 王时茂 邓赞红 方晓东 王玺 |
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| 作者单位： | Anhui Provincial Key Laboratory of Photonics Devices and Materials;Advanced Laser Technology Laboratory of Anhui Province;State Key Laboratory of Pulsed Power Laser Technology |
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| 基金项目： | supported by the Open Research Fund of the State Key Laboratory of Pulsed Power Laser Technology(No.SKL2017KF05);the National Natural Science Foundation of China(No.41627803);the Key Technology Projects;the Natural Science Foundation of Anhui Province(No.1908085MF222). |
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| 摘 要： | The laser-induced damage threshold of a calcium fluoride(CaF2)single crystal was obtained by a 193 nm ArF excimer laser.The damage morphology of the crystal was analyzed.The results showed that the surface of CaF2 single crystal broke along the natural cleavage plane under ArF excimer laser irradiation,some fragments fell off,and Newton’s rings were observed on the curved fragments.Laser-induced periodic stripe structures(LIPSS)appeared on the surface layer beneath the fragments that peeled off.The spacing of LIPSS was measured,and the formation mechanism of LIPSS was analyzed based on the interference model.
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| 关 键 词： | EXCIMER LASERS laser damage optical materials LASER-INDUCED PERIODIC STRIPE structures |
Laser-induced damage and periodic stripe structures of a CaF_2 single crystal by an ArF excimer laser |
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| Jingzhen Shao,Xu Liang,Libing You,Ning Pan,Ying Lin,Shimao Wang,Zanhong Deng,Xiaodong Fang,Xi Wang.Laser-induced damage and periodic stripe structures of a CaF2 single crystal by an ArF excimer laser[J].中国光学快报(英文版),2020(2):56-60. |
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| Authors: | Jingzhen Shao Xu Liang Libing You Ning Pan Ying Lin Shimao Wang Zanhong Deng Xiaodong Fang Xi Wang |
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| Institution: | (Anhui Provincial Key Laboratory of Photonics Devices and Materials,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;Advanced Laser Technology Laboratory of Anhui Province,Hefei 230037,China;State Key Laboratory of Pulsed Power Laser Technology,National University of Defense Technology,Hefei 230037,China) |
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| Abstract: | The laser-induced damage threshold of a calcium fluoride(CaF_2) single crystal was obtained by a 193 nm ArF excimer laser. The damage morphology of the crystal was analyzed. The results showed that the surface of CaF_2 single crystal broke along the natural cleavage plane under ArF excimer laser irradiation, some fragments fell off,and Newton's rings were observed on the curved fragments. Laser-induced periodic stripe structures(LIPSS)appeared on the surface layer beneath the fragments that peeled off. The spacing of LIPSS was measured, and the formation mechanism of LIPSS was analyzed based on the interference model. |
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