Controlling photoemission from laser-driven quantum rings

The diffused radiation from planar and structured quantum rings driven by an intense laser field is investigated. Adopting all the possible simplifications that do not hide the essential effects, the time dependent Schroedinger equation is numerically solved by considering a single active electron. We investigate the characterization of the emitted radiation as a function of some parameters concerning the geometry of the system and the laser polarization. The results show that manipulation of these parameters provides important handles to control the emitted spectrum indicating that the investigated systems are efficient sources of radiation.