hide
Free keywords:
-
Abstract:
A method is presented to measure the decay rate
of the first excited vibrational state of polar molecular ions being
part of a Coulomb crystal in a
cryogenic linear Paul trap
. Speci
f-
ically, we have monitored the decay of the |ν=1,J=1>
X
towards the
|ν=0,J=0>
X
level in MgH
+
by saturated laser excitation of the
|ν=0,J=2>
X
-
|ν
=1,J=1>
X
transition followed by state selective
reso
nance
-
enhanced two
-
photon dissociation out of the
|ν=0,J=2>
X
level.
The technique
can be extended to other simple
molecular ions
and it enables the determination, with
an
accur
a-
cy
at the few percent level
, of decay rates and thus absorption
strengths.
