Exploring the transfer squeezing properties from photons to symmetric and asymmetric surface plasmon polariton modes

Quantum surface plasmon polaritons (SPPs) are a growing research area with many unknown phenomena. In this paper, the behavior of squeezed SPP modes on a metal slab is assessed. To begin with, a quantized form of the SPP modes propagating on the metal thin film based on Green's tensor method is provided. Since the squeezing properties of the SPP modes are indeed transferred from incident photons, in the next step, different aspects of this phenomenon are studied. Obtaining an important direct relation between incident photons' properties and SPP modes will allow for the effective factors on this phenomenon to be explored. Although the initial quantum properties will be changed or lost during the photon-surface plasmon interaction, it will be shown that some factors can improve the transfer process. Finally, the squeezing transfer from incident photons to the SPP modes and effective factors on it as a full quantum phenomenon will be investigated.