Optical Tamm states in arrays of all-dielectric nanoparticles
R. S. Savelev+, A. E. Miroshnichenko*, A. A. Sukhorukov*, Y. S. Kivshar+*
+ITOM University, 197101 St. Petersburg, Russia
*Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University,
ACT 0200 Canberra, Australia
Abstract
We predict that edges of a finite one-dimensional array of
high-index dielectric nanoparticles can support evanecsent optical modes
localized near the edge, which represent an optical analogue of
the well-known
electronic Tamm states in solids. We describe the properties of such
modes for different types of the edge defect by employing dipole-dipole
approximation.