Study of Surface Plasmon Polaritons in Ferroelectric Nanowaveguides with Ag/LiNbO3 Interfaces
Year: 2025
Type: article
Abstract: Surface plasmon polaritons (SPPs) are coherent electron–plasma oscillations at the interface of materials with opposite dielectric functions. The excitation and propagation of these polariton modes are strongly affected by material dispersion, geometric behaviour and the excitation frequency. In this paper, we studied the excitation of SPPs at metal/lithium niobate (ferroelectric) interfaces and their dispersion characteristics. The plasmonic waveguides with Ag/LiNbO3 interfaces provide the coupling of ferroelectric properties in to plasmon modes. We observed a marked propagation length, and both geometrical and material dispersion properties which ensure a sensitive plasmonic system operating at plasmon frequencies.
Source: Physics of the Solid State
Authors: Gishamol Mathew, P. G. Louie Frobel
Institution: Maharaja's College, Ernakulam
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4408196929