  In the SUPER scheme (Swing-UP of the quantum EmitteR population), excitation
of a quantum emitter is achieved with two off-resonant, red-detuned laser
pulses. This allows generation of high-quality single photons without the need
of complex laser stray light suppression or careful spectral filtering. In the
present work, we extend this promising method to quantum emitters, specifically
semiconductor quantum dots, inside a resonant optical cavity. A significant
advantage of the Super scheme is identified in that it eliminates re-excitation
of the quantum emitter by suppressing photon emission during the excitation
cycle. This, in turn, leads to almost ideal single photon purity, overcoming a
major factor typically limiting the quality of photons generated with quantum
dots in high quality cavities. We further find that for cavity-mediated
biexciton emission of degenerate photon pairs the Super scheme leads to
near-perfect biexciton initialization with very high values of polarization
entanglement of the emitted photon pairs.
