Photo-dissociation of Cold MgH\(\mathsf{^ + }\) ions
2004
Molecular ions sympathetically cooled into a Coulomb crystal by laser cooled atomic ions represent in many ways an ideal target for molecular physics studies due to achievable low translational temperatures (∼10 mK) and strong spatial localization (∼1 μm). In particular, in experiments with focused laser beams, both these features can be extremely useful. Here, we present results from experiments on photo-dissociation of MgH + ions in Coulomb crystals, and discuss possible avenues for using such processes for rotational temperature measurements as well as for manipulating the branching ratio of the dissociation channels Mg + H + and Mg + + H through intensity and frequency control of the laser beams involved.
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