Generation of bubbles in glass by a femtosecond laser |
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| Authors: | Fangfang Luo Geng Lin Haiyi Sun Li Liu Qingxi Chen Jianrong Qiu Zhizhan Xu |
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| Institution: | a State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, Chinab Graduate School of the Chinese Academy of Sciences, Beijing 100039, Chinac State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Permanent microscale bubbles with varied size and number density are induced in borosilicate glasses by adjusting the focusing depth (FD) of a tightly focused femtosecond laser. With continuously increasing of the focusing depth, the average size of generated bubbles experiences an increase-decrease process. However, the number density of generated bubbles experiences an opposite changing process compared to the change of the size. The possible mechanism for the bubble generation and changing with the focusing depth has been discussed. |
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| Keywords: | Femtosecond laser Glass Microbubble Spherical aberration |
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