Photon trapping in a high-Q cavity by non-resonant atoms coupled with an external broadband vacuum field

► The effect of the Stark interaction of atomic subsystem on different subsystems. ► The non-Wiener master equation for a wide class of open systems. ► The non-Wiener dynamics of a photon subsystem of an open system. ► The decay suppression of photon mode by non-resonant intracavity atoms.