Analysis of dielectric loaded surface plasmon waveguide structures: Transfer matrix method for plasmonic devices

Abstract

The propagation properties of dielectric loaded surface plasmon polariton (DLSPP) waveguide structures have been investigated by using the transfer matrix method (TMM), which is simple and has a fast calculation speed. The results obtained from the TMM agree well with those from the finite element method. As a demonstration, we investigate the waveguide properties of DLSPP structures in the terahertz and near-infrared regimes. The TMM is potentially a powerful and effective tool for studying various plasmonic waveguide structures, which may find important applications in integrated photonic devices and sensors.

Terahertz plasmons in coupled two-dimensional semiconductor resonators

“…It has also been applied to waveguides at optical frequencies [29][30][31][32][33], where metals exhibit a plasmonic response, and to plasmonic waveguides in the terahertz range [34][35][36][37][38]. The technique can be used to characterize a single junction between two waveguides and then analyze more complex geometries (comprising multiple junctions) relying, for example, on wave [25] or transfer matrices [39].…”

Theoretical investigation of semiconductor supported tunable terahertz dielectric loaded surface plasmons waveguides

“…It mainly includes two kinds of typical structures, i.e. the dielectric fiber-dielectrics-metal waveguide structure and dielectric loaded surface plasmons (DLSPs) waveguides [22,23]. Consisting of a dielectric fiber (Si) with high refractive index separated from a metal layer by a low dielectric gap (SiO 2 ), the dielectric fiber-dielectricsmetal structure can be applied to fabricate micro and nanolasers and plasmonic integrated circuits [24,25].…”

Analysis of graphene TE surface plasmons in the terahertz regime

“…Surface plasmons (SPs) are two-dimensional (2D) electromagnetic waves confined at the metal-dielectric interface [1], resulting from the coupling of the electromagnetic field to the collective plasma excitation. SPs show promise as a possible tool to control light at a subwavelength scale [2,3], which has prospective uses in many practical applications, such as optical biosensing, waveguide devices [4][5][6][7], and emitters [8,9]. SPs have been investigated in a large variety of metal-based systems, from metallic films [2,10] and wires [11][12][13], to nano-tubes [14].…”