Femtosecond laser Bessel beam welding of transparent to non-transparent materials with large focal-position tolerant zone

doi:10.1364/OE.26.000917

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 瞬态光学技术国家重点实验室

	Femtosecond laser Bessel beam welding of transparent to non-transparent materials with large focal-position tolerant zone
	Zhang, Guodong 1,2; Stoian, Razvan 3; Zhao, Wei1 ; Cheng, Guanghua1,3
刊名	OPTICS EXPRESS
	2018-01-22
卷号	26 期号:2 页码:917-926
ISSN号	1094-4087
DOI	10.1364/OE.26.000917
产权排序	1
英文摘要	It is known that ultrashort laser welding of materials requires an accurate laser beam focusing and positioning onto the samples interface. This puts forward severe challenges for controlling the focus position particularly considering that the tightly focused Gaussian beam has a short, micron-sized Rayleigh range. Here we propose a large-focal-depth welding method to bond materials by using non-diffractive femtosecond laser Bessel beams. A zero-order Bessel beam is produced by an axicon and directly imaged on the interface between silicon and borosilicate glass to write welding lines, ensuring a non-diffractive length in the 500 mu m range and micron-sized FWHM diameter. The focal-position tolerant zone for effective welding increases thus many-fold compared to traditional Gaussian beam welding. The shear joining strength of the sample welded by this method could be as high as 16.5 MPa. The Raman spectrum and element distribution analyses within the cross section of welding line reveal that substance mixing has occurred during laser irradiation, which is considered as the main reason for femtosecond laser induced bonding. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
语种	英语
WOS记录号	WOS:000422935900050
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/30796]
专题	西安光学精密机械研究所_瞬态光学技术国家重点实验室
作者单位	1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Univ Jean Monnet, Univ Lyon, CNRS, Lab Hubert Curien,UMR 5516, F-42000 St Etienne, France
推荐引用方式 GB/T 7714	Zhang, Guodong,Stoian, Razvan,Zhao, Wei,et al. Femtosecond laser Bessel beam welding of transparent to non-transparent materials with large focal-position tolerant zone[J]. OPTICS EXPRESS,2018,26(2):917-926.
APA	Zhang, Guodong,Stoian, Razvan,Zhao, Wei,&Cheng, Guanghua.(2018).Femtosecond laser Bessel beam welding of transparent to non-transparent materials with large focal-position tolerant zone.OPTICS EXPRESS,26(2),917-926.
MLA	Zhang, Guodong,et al."Femtosecond laser Bessel beam welding of transparent to non-transparent materials with large focal-position tolerant zone".OPTICS EXPRESS 26.2(2018):917-926.