High-power laser beam shaping by inseparable two-dimensional binary-phase gratings for surface modification of stamping dies

doi:10.1016/j.optlaseng.2008.03.008

IMECH-IR > 力学所知识产出(1956-2008)

	High-power laser beam shaping by inseparable two-dimensional binary-phase gratings for surface modification of stamping dies
	Li SX(李少霞); Yu G(虞钢); Zheng CY(郑彩云); Liu XB(刘秀波)
Source Publication	Optics and Lasers in Engineering
	2008
Volume	46 Issue:7 Pages:508-513
ISSN	0143-8166
Abstract	For surface modification of stamping dies, an inseparable two-dimensional binary-phase gratings is introduced to implement the wavefront transformation of high-power laser beams. The design and fabrication of the gratings are described in detail. Two-dimensional even sampling encoding scheme is adopted to overcome the limitations of conventional Dammann grating in the design of two-dimensional output patterns. High diffractive efficiency (>70%) can be achieved through the transformation of the Gaussian laser beam into several kinds of two-dimensional arrays in focal plan. The application of the binary-phase gratings in the laser surface modification of ductile iron is investigated, and the results show that the hardness and the wear resistance of the sample surface were improved significantly by using the binary-phase gratings. (C) 2008 Elsevier Ltd. All rights reserved.
Keyword	Binary-phase Gratings Beam Shaping Diffraction Laser Surface Modification Ductile Iron Elements Design
DOI	10.1016/j.optlaseng.2008.03.008
URL	查看原文
Indexed By	SCI ; EI
Language	英语
WOS ID	WOS:000257010500003
WOS Research Area	Optics
WOS Subject	Optics
Citation statistics	Cited Times:9[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/25976
Collection	力学所知识产出(1956-2008)
Recommended Citation GB/T 7714	Li SX,Yu G,Zheng CY,et al. High-power laser beam shaping by inseparable two-dimensional binary-phase gratings for surface modification of stamping dies[J]. Optics and Lasers in Engineering,2008,46,7,:508-513.
APA	Li SX,Yu G,Zheng CY,&Liu XB.(2008).High-power laser beam shaping by inseparable two-dimensional binary-phase gratings for surface modification of stamping dies.Optics and Lasers in Engineering,46(7),508-513.
MLA	Li SX,et al."High-power laser beam shaping by inseparable two-dimensional binary-phase gratings for surface modification of stamping dies".Optics and Lasers in Engineering 46.7(2008):508-513.

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