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.

[1]
A.
Beyer
,
L.
Maisenbacher
,
A.
Matveev
,
R.
Pohl
,
K.
Khabarova
,
A.
Grinin
,
T.
Lamour
,
D. C.
Yost
,
T. W.
Hänsch
,
N.
Kolachevsky
, and
T.
Udem
,
Science
358
,
79
(
2017
).
[2]
E. R.
Hudson
,
H. J.
Lewandowski
,
B. C.
Sawyer
, and
J.
Ye
,
Phys. Rev. Lett.
96
,
143004
(
2006
).
[3]
J. J.
Chen
,
Y. R.
Sun
,
J. L.
Wen
, and
S. M.
Hu
,
Phys. Rev. A
101
,
053824
(
2020
).
[4]
M.
Brouard
,
D. H.
Parker
, and
S. Y. T.
Van De Meerakker
,
Chem. Soc. Rev.
43
,
7279
(
2014
).
[5]
Y. F.
Wang
,
J. Y.
Huang
,
W.
Wang
,
T. Y.
Du
,
Y. R.
Xie
,
Y. X.
Ma
,
C. L.
Xiao
,
Z. J.
Zhang
,
D. H.
Zhang
, and
X. M.
Yang
,
Science
379
,
191
(
2023
).
[6]
T. G.
Yang
,
J.
Chen
,
L.
Huang
,
T.
Wang
,
C. L.
Xiao
,
Z. G.
Sun
,
D. X.
Dai
,
X. M.
Yang
, and
D. H.
Zhang
,
Science
347
,
60
(
2015
).
[7]
Y. F.
Wang
,
T. Y.
Du
,
D. X.
Dai
,
C. L.
Xiao
, and
X. M.
Yang
,
Chin. J. Chem. Phys.
34
,
381
(
2021
).
[8]
A.
Xu
,
Y. J.
Ma
,
D.
Yan
,
L. F.
Fang
,
J. X.
Liu
, and
F. Y.
Wang
,
Chin. J. Chem. Phys.
34
,
61
(
2021
).
[9]
D.
Irimia
,
R.
Kortekaas
, and
M. H. M.
Janssen
,
Phys. Chem. Chem. Phys.
11
,
3958
(
2009
).
[10]
Y.
Segev
,
N.
Bibelnik
,
N.
Akerman
,
Y.
Shagam
,
A.
Luski
,
M.
Karpov
,
J.
Narevicius
, and
E.
Narevicius
,
Sci. Adv.
3
,
e1602258
(
2017
).
[11]
S. N.
Vogels
,
J.
Onvlee
,
S.
Chefdeville
,
A.
Van Der Avoird
,
G. C.
Groenenboom
, and
S. Y. T.
Van De Meerakker
,
Science
350
,
787
(
2015
).
[12]
A.
Von Zastrow
,
J.
Onvlee
,
S. N.
Vogels
,
G. C.
Groenenboom
,
A.
Van Der
, and
S. Y. T.
Van De Meerakker
,
Nat. Chem.
6
,
216
(
2014
).
[13]
W. R.
Dong
,
C. L.
Xiao
,
T.
Wang
,
D. X.
Dai
,
X. M.
Yang
, and
D. H.
Zhang
,
Science
327
,
1501
(
2010
).
[14]
T. G.
Yang
,
L.
Huang
,
C. L.
Xiao
,
J.
Chen
,
T.
Wang
,
D. X.
Dai
,
F.
Lique
,
M. H.
Alexander
,
Z. G.
Sun
,
D. H.
Zhang
,
X. M.
Yang
, and
D. M.
Neumark
,
sNat. Chem.
11
,
744
(
2019
).
[15]
C.
Abeysekera
,
B.
Joalland
,
Y.
Shi
,
A.
Kamasah
,
J. M.
Oldham
, and
A. G.
Suits
,
Rev. Sci. Instrum.
85
,
116107
(
2014
).
[16]
B.
Yan
,
P. F. H.
Claus
,
B. G. M.
Van Oorschot
,
L.
Gerritsen
,
A. T. J. B.
Eppink
,
S. Y. T.
Van De Meerakker
, and
D. H.
Parker
,
Rev. Sci. Instrum.
84
,
023102
(
2013
).
[17]
D.
Irimia
,
D.
Dobrikov
,
R.
Kortekaas
,
H.
Voet
,
D. a. V. D.
Ende
,
W. A.
Groen
, and
M. H. M.
Janssen
,
Rev. Sci. Instrum.
80
,
113303
(
2009
).
[19]
U.
Even
,
J.
Jortner
,
D.
Noy
,
N.
Lavie
, and
C.
Cossart-Magos
,
J. Chem. Phys.
112
,
8068
(
2000
).
[20]
M.
Hillenkamp
,
S.
Keinan
, and
U.
Even
,
J. Chem. Phys.
118
,
8699
(
2003
).
[21]
L.
Abad
,
D.
Bermejo
,
V. J.
Herrero
,
J.
Santos
, and
I.
Tanarro
,
Rev. Sci. Instrum.
66
,
3826
(
1995
).
[22]
E.
Narevicius
and
M. G.
Raizen
,
Chem. Rev.
112
,
4879
(
2012
).
[23]
S. Y. T.
Van De Meerakker
,
H. L.
Bethlem
,
N.
Vanhaecke
, and
G.
Meijer
,
Chem. Rev.
112
,
4828
(
2012
).
[24]
K.
Dulitz
and
T. P.
Softley
,
Eur. Phys. J. D
70
,
19
(
2016
).
[25]
J.
Lam
,
C. J.
Rennick
, and
T. P.
Softley
,
Rev. Sci.Instrum.
86
,
053108
(
2015
).
[26]
K.
Kuhnke
,
K.
Kern
,
R.
David
,
B.
Lindenau
, and
G.
Comsa
,
Rev. Sci. Instrum.
65
,
653
(
1994
)
[27]
G.
Comsa
,
R.
David
, and
B. J.
Schumacher
,
Rev. Sci. Instrum.
52
,
789
(
1981
).
[28]
V. L.
Hirschy
and
J. P.
Aldridge
,
Rev. Sci. Instrum.
42
,
381
(
1971
).
[29]
N. E.
Schofield
,
D. M.
Paganin
, and
A. I.
Bishop
,
Rev. Sci. Instrum.
80
,
123105
(
2009
).
[30]
T. G.
Yang
,
L.
Huang
,
T.
Wang
,
C. L.
Xiao
,
D. X.
Dai
, and
X. M.
Yang
,
Chin. J. Chem. Phys.
30
,
614
(
2017
).
[31]
T.
Wang
,
T. G.
Yang
,
C. L.
Xiao
,
D. X.
Dai
, and
X. M.
Yang
,
J. Phys. Chem. Lett.
4
,
368
(
2013
).
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