Abstract

Recently, continuous resonant four-wave mixing processes (RFWM) ω₄ = ω₁ − ω₂ + ω₃ in double-Λ level configurations of Na₂ molecules (Figure 1) with frequency up- [1] and down-[2] conversion have been realized. The fields with frequencies ω₁ and ω₂ are coupled by a Raman laser process. Measured lineshapes and dependences on power and detuning of the involved pump fields show distinct differences between the up- and down-conversion schemes and deviations from predictions based on a perturbative theory [3].

© 1998 IEEE