Nanophotonic device analysis using time-domain methods

The finite-difference time-domain (FDTD) method is considered one of the most general and flexible approaches for electrodynamic analysis of large irregular geometries. While time-domain approaches do not yield eigenvalue information directly, complex eigenvalues can be extracted via post-simulation signal processing. This presentation will describe time-domain eigenvalue analysis techniques and their application to a variety of problems in nanophotonics. In particular, threshold analysis of two-dimensional photonic crystal microcavities, modal analysis of multilayered spherical nanoplasmonic resonators and recently developed models for graphene plasmonics will be presented.