Efficient coherent population transfer in NO molecules using pulsed lasers

Abstract

Highly efficient and selective population transfer in NO molecules in the electronic ground state (${\mathit{X}}^2$ ${\mathrm{\Pi }}_{1/2}$) from the vibrational level v’ ’=0 to the level v’ ’=6 is demonstrated. It shows, for the first time with pulsed lasers, that a rather generally applicable scheme for complete control over the level population in atoms and molecules is now available. The efficiency relies on a counterintuitive interaction sequence of two lasers with the molecule in a process of stimulated Raman scattering involving adiabatic passage.