Development and characterization of a narrow-pulsed molecular beam system
A narrow-pulsed and velocity-controlled molecular beam system is constructed by using a high-speed chopper and a temperature adjustable pulsed valve. The duration of the hydrogen molecular beam pulse is reduced to approximately 6.3 µs and characterized using resonance-enhanced multiphoton ionization (REMPI) at a distance of ~193 mm downstream from the nozzle. To precisely determine the velocity of the hydrogen molecules, a pump-probe technique combining stimulated Raman pumping and REMPI is employed at a fixed distance (193 mm) with nanosecond lasers. By adjusting the temperature of the pulsed valve, the velocity of the hydrogen beam varies continuously from 1290 m/s to 3550 m/s. The system exhibits potential for multiple applications in the field of chemical reaction dynamics, including its potential to integrate with ion traps and surface scattering experiments.
First ; Corresponding
National Natural Science Foundation of China["22103023","22173040","22241301","22103032","22173042","21973037"] ; Shenzhen Science and Technology Innovation Committee["ZDSYS20200421111001787","JCYJ20210324103810029","20220815145746004","2021344670"] ; Guangdong Innovative amp; Entrepreneurial Research Team Program["2019ZT08L455","2019JC01X091"] ; Innovation Program for Quantum Science and Technology[2021ZD0303304]
|WOS Research Area|
Physics, Atomic, Molecular & Chemical
|WOS Accession No|
Cited Times [WOS]:0
|Document Type||Journal Article|
|Department||Department of Chemistry|
1.Shenzhen Key Laboratory of Energy Chemistry,Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
2.State Key Laboratory of Molecular Reaction Dynamics,Dalian Institute of Chemical Physics,Chinese Academy of Science,Dalian,116023,China
3.Hefei National Laboratory,Hefei,230088,China
4.Institute of Advanced Science Facilities,Shenzhen,518107,China
|First Author Affilication||Department of Chemistry|
|Corresponding Author Affilication||Department of Chemistry|
|First Author's First Affilication||Department of Chemistry|
Xie，Yurun,Liu，Heyang,Xiao，Yue,et al. Development and characterization of a narrow-pulsed molecular beam system[J]. Chinese Journal of Chemical Physics,2023,36(3):259-264.
Xie，Yurun.,Liu，Heyang.,Xiao，Yue.,Han，Jie.,Li，Zhichao.,...&Yang，Tiangang.(2023).Development and characterization of a narrow-pulsed molecular beam system.Chinese Journal of Chemical Physics,36(3),259-264.
Xie，Yurun,et al."Development and characterization of a narrow-pulsed molecular beam system".Chinese Journal of Chemical Physics 36.3(2023):259-264.
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