Rabi Waves for Excitation of Quantum Nanoantenna with Electrically Controlled Radiation Pattern and Its Application

Abstract

Rabi waves for the excitation of quantum nanoantennas with electrically controlledradiation and frequency characteristics were studied. The operational frequency of thevisible range was based on the high frequency component of the current. The lowfrequency component and its operational frequency was in the terahertz range. Thefeature of the Rabi wave antenna depends on the carrier frequency on theelectromagnetic field intensity. The contribution of high order magnetic multipolesbecame essential. The radiation properties of an antenna were the same as the idealmagnetic dipole. The antenna frequency spectrum corresponded to the amplitudemodulated Rabi oscillations. The high frequency current was in the optical range in thevicinity of the quantum transition frequency. The radiation field of the nano antennawas considered equivalent to the field of magnetic dipole placed in the centre of currentring and oriented orthogonal to the ring plane. The equivalence was consequence of theelectrical smallness of the antenna over the working range of frequency. The resultsobtained were in good agreement with previous results