Probing Nuclear Motion by Frequency Modulation of Molecular High-Order Harmonic Generation

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 理论与交叉研究部

	Probing Nuclear Motion by Frequency Modulation of Molecular High-Order Harmonic Generation
	Bian, Xue-Bin 1; Bandrauk, Andre D.2
刊名	PHYSICAL REVIEW LETTERS
	2014-11-07
卷号	113 期号:19
英文摘要	Molecular high-order harmonic generation (MHOHG) in a non-Born-Oppenheimer treatment of H-2(+), D-2(+), is investigated by numerical simulations of the corresponding time-dependent Schrodinger equations in full dimensions. As opposed to previous studies on amplitude modulation of intracycle dynamics in MHOHG, we demonstrate redshifts as frequency modulation (FM) of intercycle dynamics in MHOHG. The FM is induced by nuclear motion using intense laser pulses. Compared to fixed-nuclei approximations, the intensity of MHOHG is much higher due to the dependence of enhanced ionization on the internuclear distance. The width and symmetry of the spectrum of each harmonic in MHOHG encode rich information on the dissociation process of molecules at the rising and falling parts of the laser pulses, which can be used to retrieve the nuclear dynamics. Isotope effects are studied to confirm the FM mechanism.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	LASER FIELDS ; SINGLE-ATOM ; IONIZATION ; DYNAMICS ; GASES ; DISSOCIATION ; EMISSION ; SYSTEMS ; H-2(+) ; REGIME
收录类别	SCI
语种	英语
WOS记录号	WOS:000345358100008
公开日期	2015-07-14
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/1300]
专题	武汉物理与数学研究所_理论与交叉研究部
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Univ Sherbrooke, Dept Chim, Chim Theor Lab, Sherbrooke, PQ J1K 2R1, Canada
推荐引用方式 GB/T 7714	Bian, Xue-Bin,Bandrauk, Andre D.. Probing Nuclear Motion by Frequency Modulation of Molecular High-Order Harmonic Generation[J]. PHYSICAL REVIEW LETTERS,2014,113(19).
APA	Bian, Xue-Bin,&Bandrauk, Andre D..(2014).Probing Nuclear Motion by Frequency Modulation of Molecular High-Order Harmonic Generation.PHYSICAL REVIEW LETTERS,113(19).
MLA	Bian, Xue-Bin,et al."Probing Nuclear Motion by Frequency Modulation of Molecular High-Order Harmonic Generation".PHYSICAL REVIEW LETTERS 113.19(2014).