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Nonadiabatic effects in the molecular high-order harmonic generation from two-center molecular ions
Liu, Hang1; Feng, A. Yuanzi1,2
KeywordMolecular High-order Harmonic Generation The Shifts Of The Harmonics The Generation Of The Non-odd Harmonic The Alignment Angle Of The Molecule Ions
Source PublicationCHINESE JOURNAL OF PHYSICS
2018-04-01
ISSN0577-9073
DOI10.1016/j.cjph.2018.02.008
Volume56Issue:2Pages:665-673
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectPhysics, Multidisciplinary
WOS Research AreaPhysics
WOS KeywordATTOSECOND PULSE ; LASER FIELD ; IONIZATION ; EMISSION ; H-2(+) ; GASES
AbstractThe nonadiabatic effects in the molecular high-order harmonic generation (MHHG) from H-2 + and its isotope have been theoretically investigated beyond the Born-Oppenheimer approximations. It is found that (i) due to the asymmetric contributions of the harmonic emission on the rising and the falling parts of the laser field, the frequency red-shifts in the MHHG can be found. As the initial vibrational state or the pulse intensity increases, the red-shifts of the harmonics are decreased and even the blue-shifts of the harmonics can be found in the higher pulse intensity with the higher vibrational state. With the increase of the pulse duration, the frequency red-shifts and the blue-shifts in the MHHG are decreased and enhanced, respectively. The shifts of the harmonics from the heavy nuclei are decreased compared with those from the light nuclei. (ii) Due to the coupling of the electron-nuclear dynamics, the non-odd harmonics can be produced at the larger internuclear distance. With the increase of the initial vibrational state or the pulse duration, the generations of the non-odd harmonics can be enhanced. As the pulse intensity increases, the intensities of the non-odd harmonics are first increased and then decreased at the much larger pulse intensity. Due to the slower nuclear motion, the generations of the non-odd harmonics are decreased as the nuclear mass increases. (iii) With the increase of the alignment angle of the molecule ions, the nonadiabatic effects in MHHG (including the shifts of the harmonics and the generations of the non-odd harmonics) are decreased.
Language英语
WOS IDWOS:000429822100020
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169139
Collection中国科学院大连化学物理研究所
Corresponding AuthorFeng, A. Yuanzi
Affiliation1.Liaoning Univ Technol, Sch Chem & Environm Engn, Jinzhou 121001, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Liu, Hang,Feng, A. Yuanzi. Nonadiabatic effects in the molecular high-order harmonic generation from two-center molecular ions[J]. CHINESE JOURNAL OF PHYSICS,2018,56(2):665-673.
APA Liu, Hang,&Feng, A. Yuanzi.(2018).Nonadiabatic effects in the molecular high-order harmonic generation from two-center molecular ions.CHINESE JOURNAL OF PHYSICS,56(2),665-673.
MLA Liu, Hang,et al."Nonadiabatic effects in the molecular high-order harmonic generation from two-center molecular ions".CHINESE JOURNAL OF PHYSICS 56.2(2018):665-673.
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