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Lifetime Measurement of the First Vibrationally Excited State of MgH+ in a Cryogenic Paul Trap (CryPTEx)

MPS-Authors
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Versolato,  Oscar
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Schwarz,  M.
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Windberger,  Alexander
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Crespo López-Urrutia,  J. R.
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Citation

Versolato, O., Schwarz, M., Hansen, A. K., Gingell, A. D., Windberger, A., Klosowski, L., et al. (2014). Lifetime Measurement of the First Vibrationally Excited State of MgH+ in a Cryogenic Paul Trap (CryPTEx). In Precision Electromagnetic Measurements (CPEM 2014) (pp. 56-57). doi:10.1109/CPEM.2014.6898256.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0023-F9D6-8
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.