Rotational state resolved photodissociation spectroscopy of translationally and vibrationally cold MgH+ions: toward rotational cooling of molecular ions
Klaus Højbjerre, Anders Kragh Hansen, Peter Sandegaard Skyt +2 more
The first steps toward the implementation of a simple scheme for rotational cooling of MgH + ions based on rotational state optical pumping is considered. The various aspects of such an experiment are described in detail, and the rotational state-selective dissociation spectra of translationally and vibrationally cold MgH + ions are presented, with and without the optical pumping laser being present. While rotational cooling is as yet not evident, first results showed evidence of a change in the rotational distribution in the presence of the optical pumping laser.
New Journal of Physics•May 14, 2009•32 citations