Adiabatische Inversion von Zustandsbesetzungen im elektrischen Feld

Abstract

It is shown that the inversion of electric dipole states in electric fields by the adiabatic passage method is possible in a way analogue to the inversion of magnetic dipole states in magnetic fields. A method developed byDaniels is used to derive the conditions for the minimum amplitude and the frequency of the r.f. field for the inversion (J,m _J ) 1,0↔1, ±1 and 2,0↔2, ±1, whereJ is the rotational quantum number. Rotational inversions are also considered.

Experiments with a molecular beam resonance apparatus have shown that more than 90% of a beam of TIF and CsF molecules could be transferred from the state (J, m _J ) 1,0↔1, ±1.