We present a novel framework for deriving the three-dimensional (3-D) differential surface admittance (DSA) operator. The approach is based on a new unified transform method for the 3-D vector Helmholtz equation. This formulation enables a broader applicability than existing DSA derivation techniques, without compromising its accuracy. The effectiveness of the proposed method is verified through a representative scattering problem, and its practical utility is further demonstrated by evaluating the impedance response of an on-chip stacked spiral inductor.
An FDTD-TDDFT method for the EM/QM co-simulation of nanowire systems in the Lorenz gauge
Real-time time-dependent density functional theory (TDDFT) constitutes a cornerstone in the modeling of nanoscale materials. Although numerous application areas have already benefited from the technique,