Analysis of Coupled Surface Plasmon in LHM Mediated Dielectric Gap Multilayer Structure

Abstract

The purpose of this work is to investigate theoretically the characteristics of confined electromagnetic modes propagating along the interfaces of a multilayer device. This one dimensional (ID) sensor is formed by stacking a left-handed material (LHM) layer between a SiCt2-glass prism and a dielectric gap layer in contact with gold (Au). The results indicate that the total thickness of the LHM layer and dielectric gap, in optimum conditions, give the ability of tuning significantly the characteristics of the resonant modes correlated to surface plasmons (SPs) propagation along the interfaces of the designed device. By considering two arrangements between LHM and Au, two opposite resonant behaviors observed in p-reflectance spectra are analyzed in the angular interrogation mode and discussed thoroughly.

Comparative Study on Sensing Characteristics of Optical Surface Plasmon Resonance Sensors Using A Single LHM-Dielectric Interface: A Theoretical Study

“…1), is established as a reminder only. The results that we interpret later are provided from the use of the TMM which can be found in [7].…”

“…Fundamental features of surface plasmon resonance (SPR) phenomena were extensively explored in various alternative optical sensors [1][2][3][4][5][6][7][8]. The excitation of such resonant optical phenomena in active nano-materials, is pronounced by sharp angular/spectral absorption peaks that being correlated to a strong evanescent field [9,10].…”