fig3
Figure 3. (A) Emission angles of Type-0, Type-I and Type-II vs. fundamental wavelength. (B) Nonlinear Cherenkov diffraction at different SHG wavelengths (425 to 600 nm, with an interval of 25 nm). l = 82.3 mm. Scale bar = 20 mm. (C) Cherenkov angle vs. fundamental wavelength. (D) Relative SHG intensity vs. the fundamental polarization angle θ0, measured with respect to the x- and y-axes. The insert shows the analyzed points in the x-y plane.
