Abstract:
we have studied theoretically the formation of novel
optical Tamm states at the interface between a metal nano-layer and
one-dimensional dielectric photonic crystal. We have used transfer
matrix method to study the mode formation at the interface between
the metal and dielectric nanophotonic structures. Unlike the
conventional optical surface states, optical Tamm states can be
excited at normal incidence of light. They can also be excited for TE
polarized light. The tunability of optical Tamm states and the factors
effecting their formation is studied in detail. Our results have
applications in non-linear optics and in optical communication.
