A network formulation for characterization of plasmonic interactions in a semiconductor nanodimer

An effective-field approach is employed to arrive at the total dipole moment induced on a nanodimer by a terahertz electric field. The implemented formulation is aided by the use of networks synthesized from the polarizability of the particles, enabling close form expressions to be obtained. Salient features such as field enhancement and spectral shift in the surface plasmon resonance frequency exhibited by a nanodimer comprise of conductive particles are revealed by the calculated total dipole moment. The method can be directly extended to gain insight to polarization interactions in larger clusters with only a moderate increase in computation effort.