Open AccessVibrational and rotational cooling dynamics of the triatomic molecular ion N2O+ stored in RICE
Author(s) -
R. Igosawa,
Akira Hirota,
Toshihiro Yamaguchi,
Matthew Lindley,
K. C. Chartkunchand,
Yuji Nakano,
Susumu Kuma,
T. Azuma
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/23/232002
Subject(s) - triatomic molecule , atomic physics , ion , radiative transfer , rotational dynamics , rotational temperature , laser cooling , radiative cooling , chemistry , physics , laser , molecule , optics , astrophysics , organic chemistry
Synopsis We studied radiative cooling dynamics of the triatomic molecular ion N 2 O + stored in RICE. We observed the evolution of the populations at vibrational and rotational levels up to several 100 s by measuring neutral fragments from the laser-induced predissociation process. We found clear evidence of radiative cooling of the vibrational level populations with a time constant of several seconds. In contrast, absence of significant changes in the rotational levels revealed that the time scale of the rotational cooling is far longer, which is consistent to our simulation.