  We study the rate of quantum phase slips in an ultranarrow superconducting
nanowire exposed to weak electromagnetic radiations. The superconductor is in
the dirty limit close to the superconducting-insulating transition, where
fluxoids move in strong dissipation. We use a semiclassical approach and show
that external radiation stimulates a significant enhancement in the probability
of quantum phase slips. This can help to outline a new type of detector for
microwave to submillimetre radiations based on stimulated quantum phase slip
phenomenon.
