Figure 2.
Calculated Raman spectra for different rotation angles on the a-plane in the parallel (a) and perpendicular polarization vector configurations. The inset of panel (b) shows the modification of the spectrum upon relaxation of the ideal scattering geometry. (c) Scheme of the wurtzite lattice and high symmetry planes perpendicular (c-plane) and parallel (a-plane) to the polar (0001) c-axis. ki indicates the propagation direction of light, ei,s are the incident and scattered polarization vectors; θ is the rotation angle in the plane perpendicular to the ki direction.