Threshold of femtosecond laser-induced damage in transparent materials

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

	Threshold of femtosecond laser-induced damage in transparent materials
	Jia, TQ; Li, RX; Liu, Z; Xu, ZZ
刊名	appl. phys. a-mater. sci. process.
	2002
卷号	74 期号:4 页码:503
通讯作者	jia, tq (reprint author), chinese acad sci, shanghai inst opt & fine mech, lab high intens opt, pob 800-211, shanghai 201800, peoples r china.
英文摘要	the rate at which conduction-band electrons (cbe) absorb laser energy is calculated by both the quantum mechanical and the classical methods. here fused silica irradiated with a 780-nm femtosecond-pulse laser is used as an example. it is found that the rate obtained by the quantum mechanical method is about one-third of that by the classical method, and it is much less than the direct-current limit. in the flux-doubling model, the avalanche rate in fused silica is 4 i ps(-1) obtained by the quantum mechanical method, while it is about 13.7 ips(-1) by the classical method, where the laser intensity i is in units of twcm(-2). the differential equation of the evolution of cbe density is solved numerically, and it is found that the combination of cbe hole recombination, cbe diffusion and initial cbe density (< 10(13) cm(-3)) is not important. the dependence of avalanche breakdown threshold on laser-pulse duration is presented. the threshold calculated by the quantum mechanical method agrees well with experimental results, while the threshold obtained by the classical method differs greatly from the experiments.
收录类别	SCI
语种	英语
WOS记录号	WOS:000174673300009
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/17733]
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	Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Lab High Intens Opt, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Jia, TQ,Li, RX,Liu, Z,et al. Threshold of femtosecond laser-induced damage in transparent materials[J]. appl. phys. a-mater. sci. process.,2002,74(4):503.
APA	Jia, TQ,Li, RX,Liu, Z,&Xu, ZZ.(2002).Threshold of femtosecond laser-induced damage in transparent materials.appl. phys. a-mater. sci. process.,74(4),503.
MLA	Jia, TQ,et al."Threshold of femtosecond laser-induced damage in transparent materials".appl. phys. a-mater. sci. process. 74.4(2002):503.