Figure 5
From: Plasmonic waveguide design for the enhanced forward stimulated brillouin scattering in diamond
Brillouin spectrum of a GSP waveguide. The mode E2 produces significant overall gain, while the other two elastic eigenmodes show nearly zero effect. The incident wavelength is 637 nm, corresponding to the zero phonon line emission of nitrogen vacancy in diamond. The graph also presents gain contributions from ES forces (green star) and RP forces (blue diamond). Parameters are given as: H 0 = 250 nm, W 2 = 150 nm. The color of the modes means the sign of x-component of the displacement field: u x (blue: negative, red: positive). Note that the periodic boundary conditions have been applied to two side walls which are in x-y plane, as shown in Fig. 1. Here the phonon wavevector K = 0.
