Figure 4
(a) Dependence of the SHW intensity ISHG on the rotation-angle δ for different \(\eta \) and parameter values \(\varphi =60^\circ \) and \(\alpha =0^\circ \), i.e., pure \(p\)-polarization of the incident plane wave. (b) Normalized values of the difference of the maxima shown in (a), defined by Eq. (13), in dependence on the polarization angle α and the angle of incidence \(\varphi \). (c) Minimal dynamic range of a measurement system needed to achieve detection of the surface contribution to the SHW intensity for different ratios \(\eta \) of surface and bulk nonlinearity.
