Localized-to-propagating surface plasmon transitions in gold nanoslit gratings
M. I. Dobynde, M. R. Shcherbakov, T. V. Dolgova, A. A. Fedyanin
Faculty of Physics, Lomonosov MSU, 119991 Moscow, Russia
Abstract
Plasmon-polaritons in thin gold nanoslit gratings with a fixed
period and a variable filling factor are studied using micro-spectroscopy
measurements and finite-difference time-domain simulations. The regimes of
surface plasmon-polaritons, localized plasmons and the mixed mode are
identified.