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	Characterization method of unusual second-order-harmonic generation based on vortex transformation
	Hu, Zhengfeng; Zhang, Chaojin; Wu, Erheng; Gu, Mingliang; Liu, Chengpu
刊名	Phys. Rev. A
	2017
卷号	96期号:3
通讯作者	chpliu@siom.ac.cn
英文摘要	When a few-cycle laser beam nonresonantly propagates through an inversion-symmetric medium, beyond the usual odd-order harmonics in the transmission spectra, a well-defined spectral peak at twice the incident laser central frequency is disclosed [T. Tritschler et al., Phys. Rev. Lett. 90, 217404 (2003)]. Beyond the characterization method via the rf measurement of its carrier-envelope phase dependence, here a more direct mode of characterization is proposed by means of vortex transformation where a few-cycle vortex laser is adopted instead: One can easily clarify its origin as an usual third-order harmonic that appears to be a second-order harmonic, based on the criteria that the topological charge number of harmonics is directly proportional to its harmonic order.
收录类别	SCI
资助信息	National Natural Science Foundation of China [11374318, 11674312, 61775087]; Natural Science Foundation of Jiangsu province [BK20161159]; Open Fund of the State Key Laboratory of High Field Laser Physics of SIOM; 100-talents Project of Chinese Academy of Sciences
WOS记录号	WOS:000411973900011
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28558]
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	Hu, Zhengfeng,Zhang, Chaojin,Wu, Erheng,et al. Characterization method of unusual second-order-harmonic generation based on vortex transformation[J]. Phys. Rev. A,2017,96(3).
APA	Hu, Zhengfeng,Zhang, Chaojin,Wu, Erheng,Gu, Mingliang,&Liu, Chengpu.(2017).Characterization method of unusual second-order-harmonic generation based on vortex transformation.Phys. Rev. A,96(3).
MLA	Hu, Zhengfeng,et al."Characterization method of unusual second-order-harmonic generation based on vortex transformation".Phys. Rev. A 96.3(2017).

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