A polarizing beam splitter for dipolar molecules

We analyze a coherent beam splitter for polarized heteronuclear molecules based on a STIRAP scheme that uses a tripod linkage of electro-translational molecular states. We show that for strongly polarized molecules the rotational dynamics imposes significantly larger Rabi frequencies than would be otherwise be expected, but within this limitation, a full transfer of the molecules to two counter propagating ground-state wave packets is possible.