Anomalous Transitions in Two-Level Systems Driven by the AC Stark Effect
W L. Meerts, I Ozier, Jon T. Hougen
An unusual type of non-resonant absorption signal produced by the ac Stark effect has been observed in a two-level avoided-crossing system. The theory for these anomalous transitions has been developed. The non-resonant signals have been shown to be caused by the perturbation by the oscillating field of the dephasing of the two-level system at the avoided-crossing. A series of measurements of these anomalous transitions has been carried out using the avoided-crossing molecular-beam electric-resonance technique. In addition, different types of resonant multiphoton transitions have been investigated. Results are reported for the AE-barrier anticrossing with J = 1 in CH3SiH3. The experimental findings are in good agreement with the theory developed.
Canadian Journal of Physics
ac stark effect, avoided crossings, molecular beam electric resonance, multiphoton absorption, non-resonant absorption
, Ozier, I.
and Hougen, J.
Anomalous Transitions in Two-Level Systems Driven by the AC Stark Effect, Canadian Journal of Physics
(Accessed November 30, 2023)