Optimal Bichromatic Two-Photon Excitation with Near-Resonant Chirped Pulses
Carles Serrat, Jens Biegert, Theodore E. Simos +1 more
We investigate a method for creating complete population inversion in a three level system by using bichromatic two‐photon coherent excitations with laser pulses, and study the dependence of the optimal population transfer on the chirp of the pulses. We observe that the population inversion does not monotonously decrease with increasing the time‐bandwidth product, and that the excitation depends on the sign of the chirp of the individual pulses. Our results, which evidence a worthwhile strategy for coherent population transfer in three level systems, are particularized to the level structure of atomic sodium, with regard to applications in bichromatic mesospheric guide stars.
AIP conference proceedings•Jan 1, 2007•1 citation