Control of light emission of quantum emitters coupled to silicon nanoantenna using cylindrical vector beams.

ABSTRACT: Light emission of europium (Eu³⁺) ions placed in the vicinity of optically resonant nanoantennas is usually controlled by tailoring the local density of photon states (LDOS). We show that the polarization and shape of the excitation beam can also be used to manipulate light emission, as azimuthally or radially polarized cylindrical vector beam offers to spatially shape the electric and magnetic fields, in addition to the effect of silicon nanorings (Si-NRs) used as nanoantennas. The photoluminescence (PL) mappings of the Eu³⁺ transitions and the Si phonon mappings are strongly dependent of both the excitation beam and the Si-NR dimensions. The experimental results of Raman scattering and photoluminescence are confirmed by numerical simulations of the near-field intens

SUBMITTER: Montagnac M 

PROVIDER: S-EPMC10509260 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature