THz surface phonon polariton generation in GaP photonic waveguide
Résumé
Generation of THz wave using surface phonon polariton and difference frequency generation in GaP stripe is investigated. Here, we present our preliminary results and show that mixing a TE and a TM mid-IR mode propagating along a [100] crystal axis is more efficient than the usual optical configuration along a [110] axis under transverse pump modes for efficient THz generation.