(a) TEM image of the ultra-fine NiS nanorods with diameter of ~2.7 nm. (b) ADF-STEM image and (c) corresponding FFT pattern of the ultra-fine nanorod in radial direction. (d) ADF-STEM image and (e) ...
Fig. 2: Fundamentals of SHG. (a) Schematic energy-level diagram illustrating SHG. Efficient nonlinear harmonic generation requires both phase matching and mode matching. (b) Illustration of phase ...