Figure 4
From: THz-photonics transceivers by all-dielectric phonon-polariton nonlinear nanoantennas
Conversion efficiency for THz generation by DFG in the proposed AlGaAs nanoantenna, evaluated from FEM numerical analysis (blue), and QST reduced model of Eq. (4) with (black) or without (red) contribution from TO phonon permittivity. The inset shows the negligible spectral distorsion introduced by the proposed transceiver.
