Dissociative photoionisation of O2 with tunable 10, 20 and 30 eV photons

Luo，Zijie1,2; Chen，Zhichao2; Chang，Yao2; Zhao，Yarui2; Yang，Jiayue2; Che，Li1; Zhang，Weiqing2; Wu，Guorong2; Sun，Zhongfa3; Yuan，Kaijun2,4; Parker，David H.3,6; Yang，Xueming2,4,5

2023

10.1080/00268976.2023.2195506

Molecular Physics   影响因子和分区

0026-8976

1362-3028

Atomic oxygen ions, O, created by photoexcitation of a cold supersonic beam of O by the output of a free-electron laser operating in the 128–122 nm region are detected by sliced velocity map imaging. Analysis of the richly structured high resolution kinetic energy and angular distributions obtained show that O production is due to the second and third harmonics present in the laser output. Excellent slicing and optimal velocity mapping allows separation of overlapping signal from dissociative photoionisation processes driven by 20 eV versus 30 eV photons. A two-colour experiment combining the free electron laser and a nanosecond dye laser output at 225.6 nm allowed detection of direct photodissociation of the metastable O b Σ (v = 0–4) state is observed and assigned to a parallel b Σ – (c Σ)4s Rydberg transition followed by dissociation to O (S) + O(P).

dissociation photoionisation FEL O2 VMI VUV

SCI ; EI

英语

其他

National Natural Science Foundation of China (NSFC Center for Chemical Dynamics)["22288201","21773236"] ; Key Technology Team of the Chinese Academy of Sciences[GJJSTD20220001] ; Innovation Program for Quantum Science and Technology[2021ZD0303304] ; Guangdong Science and Technology Program[ZDSYS20200421111001787] ; National Natural Science Foundation of China[22103003] ; Anhui Provincial Natural Science Foundation[2208085Y02] ; Natural Science Research Project of the Education Department of Anhui Province[KJ2021ZD0008] ; open foundation of the state key laboratory of molecular reaction dynamics in DICP, CAS[SKLMRD-K202204]

Chemistry ; Physics

Chemistry, Physical ; Physics, Atomic, Molecular & Chemical

WOS:000969453000001

TAYLOR & FRANCIS LTD

20231613894739

Dye lasers ; Electrons ; Free electron lasers ; Kinetic energy ; Kinetics ; Photodissociation ; Photons

Fluid Flow, General:631.1 ; Free Electron Lasers:744.5 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Classical Physics; Quantum Theory; Relativity:931 ; Atomic and Molecular Physics:931.3

PHYSICS

2-s2.0-85152443445

Scopus

1.Marine Engineering College,Dalian Maritime University,Dalian,China
2.State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,China
3.Anhui Normal University,Wuhu,China
4.Hefei National Laboratory,Hefei,China
5.Department of Chemistry,Southern University of Science and Technology,Shenzhen,China
6.Radboud University,FNWI,IMM,Nijmegen,Netherlands

Luo，Zijie,Chen，Zhichao,Chang，Yao,et al. Dissociative photoionisation of O2 with tunable 10, 20 and 30 eV photons[J]. Molecular Physics,2023,121(17-18).

Luo，Zijie.,Chen，Zhichao.,Chang，Yao.,Zhao，Yarui.,Yang，Jiayue.,...&Yang，Xueming.(2023).Dissociative photoionisation of O2 with tunable 10, 20 and 30 eV photons.Molecular Physics,121(17-18).

Luo，Zijie,et al."Dissociative photoionisation of O2 with tunable 10, 20 and 30 eV photons".Molecular Physics 121.17-18(2023).