QUANTUM LIGHT GENERATION AND SUPERRADIANCE EFFECTS IN THE ACTIVE MICROCAVITY

The process of generation of non-classical radiation in an active Fabr y-Perot dye microcavity, under femtosecond excitation, has been invest igated. Single photon states, with a non-classical sub-Poissonian dist ribution have been generated after the excitation of a small number of active molecules, located between the two mirrors. By multiple excita tion of the active medium, collective emission phenomena are expected because of the strong superradiant coupling occurring within the trans verse coherence area of the microcavity. In particular, we have experi mentally verified the principle of relativistic causality within the p rocess of two-dipole superradiance by transverse interaction, in condi tion of strong microcavity confinement.