DESIGN OF A SERIES DR NANOANTENNA ARRAY FOR OPTICAL FREQUENCIES

Suitably shaped metal nanostructures acts as resonant optical antennas that efficiently collect light an confine it to a sub wavelength volume which has been modified by using the dielectric resonators working at optical frequencies. In radio frequencies and microwaves a category of antenna known as dielectric resonator antenna (DRA), whose radiant element i s dielectric resonator (DR). In this paper we study the results obtained by placing the two cylindrical dielectric resonator (DR) in series rather than in parallel through a Nanostrip made of silver at optical frequency of 193.5 THz. Numerical demonstrations showing the fundamental antenna parameters for circular cylindrical NDRA type have been carried out for the short (S), conventional (C), and long (L) bands of the optical communication spectrum.