Ugwuoke, Luke C.(University of Pretoria, 2020-12-06)
In the framework of the quasi-static approximation (QSA), some theoretical studies were conducted within the local response approximation (LRA). In these studies, certain plasmonic and plexcitonic systems were proposed, ...
Ugwuoke, Luke C.; Mančal, Tomáš; Kruger, T.P.J. (Tjaart)(Springer, 2020-02)
We derive and present systematic relationships between the analytical formulas for calculation of the localized surface plasmon resonances (LSPR) of some plasmonic nanostructures which we have categorized as simple. These ...
Ugwuoke, Luke C.; Mancal, Tomas; Kruger, T.P.J. (Tjaart)(Optical Society of America, 2020-11)
Plasmon coupling between the dipolar localized surface plasmons of a nanoegg and the longitudinal dipolar localized surface plasmons of a nearby gold nanorod is investigated within a dipolar-quasistatic limit. This was ...
Ugwuoke, Luke C.; Mancal, Tomas; Kruger, T.P.J. (Tjaart)(American Institute of Physics, 2020-05)
We investigate the impact of the dipole-active modes formed via the mode-mixing of the dipole mode with higher-order surface plasmon modes of a nanoegg on the radiative decay rate and quantum yield of an excited molecule ...
Ugwuoke, Luke C.; Kruger, T.P.J. (Tjaart)(American Chemical Society, 2022-05)
We develop a theoretical framework, based on a multipole, quasi-static approach, for the prediction of the localized surface plasmon resonances in Fanoshells formed via geometrical symmetry breaking in multilayer nanoshells ...
