Mathematical Model of Plasmon Nanolaser Resonator Taking the Non-Local Effect into Account

Based on the discrete sources method, a mathematical model of the plasmon nanolaser resonator deposited on the prism surface in an active ambient medium is developed and implemented, which allows taking into account the non-local effect (NLE) in the plasmon material. The resonator’s characteristics are optimized, which makes it possible to obtain a field enhancement on the external surface of the resonator by more than two orders of magnitude. The influence of the NLE on the enhancement in the spectral wavelength range is investigated. It is shown that accounting for the NLE leads to a significant decrease in the near-field intensity.