Abstract: In this letter, we apply the basic principle of the total field/scattered field method to the 3-D associated Hermite unconditionally stable finite-difference time-domain (FDTD) method (AH ...

Abstract: The cross phase (CP) opens up a new horizon for the generation and measurement of vortex beams, and the conversion between Hermite-Gaussian (HG) and Laguerre-Gaussian (LG) modes can be done ...