Laser-induced periodic surface structures on 6H-SiC single crystals using temporally delayed femtosecond laser double-pulse trains

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 强场激光物理国家重点实验室

	Laser-induced periodic surface structures on 6H-SiC single crystals using temporally delayed femtosecond laser double-pulse trains
	Zhao, Quanzhong; Song, Juan; Tao, Wenjun; Song, Hui; Gong, Min; Ma, Guohong; Dai, Ye; Qiu, Jianrong
刊名	Appl. Phys. A-Mater. Sci. Process.
	2016
卷号	122 期号:4
通讯作者	ddvsh@163.com
英文摘要	In this paper, a time-delay-adjustable double-pulse train with 800-nm wavelength, 200-fs pulse duration and a repetition rate of 1 kHz, produced by a collinear two-beam optical system like a Mach-Zehnder interferometer, was employed for irradiation of 6H-SiC crystal. The dependence of the induced structures on time delay of double-pulse train for parallel-polarization configuration was studied. The results show that as the time delay of collinear parallel-polarization dual-pulse train increased, the induced near-subwavelength ripples (NSWRs) turn from irregular rippled pattern to regularly periodic pattern and have their grooves much deepened. The characteristics timescale for this transition is about 6.24 ps. Besides, the areas of NSWR were found to decay exponentially for time delay from 0 to 1.24 ps and then slowly increase for time delay from 1.24 to 14.24 ps. Analysis shows that multi-photon ionization effect, grating-assisted surface plasmon coupling effect, and timely intervene of second pulse in a certain physical stage experienced by 6H-SiC excited upon first pulse irradiation may contribute to the transition of morphology details.
收录类别	SCI
资助信息	National Natural Science Foundation of China [61205128, 60908007, 11374316]; Research Foundation for Advanced Talents of Jiangsu University [09 JDG022]; Shanghai Municipal Natural Science Foundation [13ZR1414800]
WOS记录号	WOS:000372259900082
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28656]
专题	上海光学精密机械研究所_强场激光物理国家重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Zhao, Quanzhong,Song, Juan,Tao, Wenjun,et al. Laser-induced periodic surface structures on 6H-SiC single crystals using temporally delayed femtosecond laser double-pulse trains[J]. Appl. Phys. A-Mater. Sci. Process.,2016,122(4).
APA	Zhao, Quanzhong.,Song, Juan.,Tao, Wenjun.,Song, Hui.,Gong, Min.,...&Qiu, Jianrong.(2016).Laser-induced periodic surface structures on 6H-SiC single crystals using temporally delayed femtosecond laser double-pulse trains.Appl. Phys. A-Mater. Sci. Process.,122(4).
MLA	Zhao, Quanzhong,et al."Laser-induced periodic surface structures on 6H-SiC single crystals using temporally delayed femtosecond laser double-pulse trains".Appl. Phys. A-Mater. Sci. Process. 122.4(2016).