Observation of rotational coherence in an excited state of CO+

doi:10.1364/OL.432315

	Observation of rotational coherence in an excited state of CO+
	Wan, Y. X.1,2,3; Fu, B. T.1,2,3,4 ; Xie, H. Q.5; Yu, S. P.1,2,3; Lei, H. B.6; Zhang, F. B.1,2,3; Zhang, Z. H.1,2,3,4 ; Qiao, L. L.1,2; Li, G. H.7; Zhao, J.6; Zhao, Z. X.6; Yao, J. P.1,2; Cheng, Y.1,2
	2021-08-15
发表期刊	OPTICS LETTERS (IF:3.1[JCR-2023],3.1[5-Year])
ISSN	0146-9592
EISSN	1539-4794
卷号	46 期号:16 页码:3893-3896
发表状态	已发表
DOI	10.1364/OL.432315
摘要	The vacuum ultraviolet (VUV) radiation is generated in the strong-field-ionized CO molecules through 2 + 1 resonance excitation with two-color femtosecond laser pulses. When scanning the relative delay between two pump pulses, the rotational-resolved VUV radiations show periodic oscillations lasting as long as 500 ps. Fourier analysis reveals that these oscillations correspond to rotational beat frequencies of the A(2) Pi(i) state of CO+, which is the result of multi-channel interference during the resonant excitation process. High resolution of Fourier transform spectra up to 0.067 cm(-1) allows us to obtain the fine energy levels of the A(2) Pi(i) state. The theoretical calculation is in good agreement with the experimental observation. This work reveals the rotational coherence of the ionic excited state and shows the prospect of rotational coherence spectroscopy in measuring fine structures of molecular ions. (C) 2021 Optical Society of America
关键词	Femtosecond lasers Fourier analysis Laser excitation Laser pulses Optical pumping Ultraviolet lasers Uranium metallography Vanadium metallography Fourier transform spectra Periodic oscillation Resonance excitation Resonant excitation Rotational coherences Theoretical calculations Two color femtosecond laser pulse Vacuum ultraviolet radiation
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:000685553000020
出版者	OPTICAL SOC AMER
EI入藏号	20213310763949
EI主题词	Excited states
EI分类号	531.2 Metallography ; 547 Minor, Precious and Rare Earth Metals and Alloys ; 744.1 Lasers, General ; 744.9 Laser Applications ; 921 Mathematics ; 931.3 Atomic and Molecular Physics
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/127986
专题	物质科学与技术学院物质科学与技术学院_硕士生物质科学与技术学院_博士生
通讯作者	Yao, J. P.
作者单位	1.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech SIOM, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech SIOM, CAS Ctr Excellence Ultraintense Laser Sci, Shanghai 201800, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China; 5.East China Univ Technol, Sch Sci, Nanchang 330013, Jiangxi, Peoples R China; 6.Natl Univ Def Technol, Dept Phys, Changsha 410073, Peoples R China; 7.East China Jiaotong Univ, Sch Sci, Nanchang 330013, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Wan, Y. X.,Fu, B. T.,Xie, H. Q.,et al. Observation of rotational coherence in an excited state of CO+[J]. OPTICS LETTERS,2021,46(16):3893-3896.
APA	Wan, Y. X..,Fu, B. T..,Xie, H. Q..,Yu, S. P..,Lei, H. B..,...&Cheng, Y..(2021).Observation of rotational coherence in an excited state of CO+.OPTICS LETTERS,46(16),3893-3896.
MLA	Wan, Y. X.,et al."Observation of rotational coherence in an excited state of CO+".OPTICS LETTERS 46.16(2021):3893-3896.