Strong light-matter coupling: parametric interactions in a cavity and free-space

Mekhov, I. B.; Egorov, V. S.; Lebedev, V. N.; Moroshkin, P. V.; Chekhonin, I. A.; Bagayev, S. N.

Strong light-matter coupling: parametric interactions in a cavity and free-space

Authors

Description

We consider parametric interactions of laser pulses in a coherent macroscopic ensemble of resonant atoms, which are possible in the strong coupling regime of light-matter interaction. The spectrum condensation (lasing at collective vacuum Rabi sidebands) was studied in an active cavity configuration. Parametric interactions under the strong light-matter coupling were proved even in free space. In contrast to bichromatic beats in a cavity, they were shown to appear due to interference between polaritonic wave packets of different group velocities.
4 pages, 2 figures