Compound guided waves that mix characteristics of surface-plasmon-polariton, Tamm, Dyakonov–Tamm, and Uller–Zenneck waves

Abstract

Solutions of the boundary-value problem for electromagnetic waves guided by a layer of a homogeneous and isotropic (metal or dielectric) material sandwiched between a structurally chiral material (SCM) and a periodically multilayered isotropic dielectric (PMLID) material were numerically obtained and analyzed. If the sandwiched layer is sufficiently thick, the two bimaterial interfaces decouple from each other, and each interface may guide one or more electromagnetic surface waves (ESWs) by itself. Depending on the constitution of the two materials that partner to form an interface, the ESWs can be classified as surface-plasmon-polariton waves, Tamm waves, Dyakonov–Tamm waves, or Uller–Zenneck waves. When the sandwiched layer is sufficiently thin, the ESWs for single bimaterial interfaces coalesce to form compound guided waves (CGWs). The phase speeds, propagation distances, and spatial profiles of the electromagnetic fields of CGWs are different from those of the ESWs. The energy of a CGW is distributed in both the SCM and the PMLID material, if the sandwiched layer is sufficiently thin. Some CGWs require the sandwiched layer to have a minimum thickness. Indeed, the coupling between the two faces of the sandwiched layer is affected by the ratio of the thickness of the sandwiched layer to the skin depth in that material and the rates at which the fields of the ESWs guided individually by the two interfaces decay away from their respective guiding interfaces

Dyakonov surface waves in dielectric crystals with negative anisotropy

“…The existence of DSWs has been also theoretically predicted for interfaces between isotropic material and metamaterial with artificially designed anisotropy [4,[25][26][27][28][29][30][31][32]. In such structures the angular existence domain of DSWs can be sufficiently extended.…”

Dimensional confinement and waveguide effect of Dyakonov surface waves in twisted confined media

“…It has been demonstrated in a number of publications that Dyakonov surface waves can exist at the interface of isotropic materials and materials with artificially designed shape anisotropy. 9,[18][19][20][21][22] Moreover, as theoretically shown in Ref. [23,24], in the metamaterial composed of alternating layers of metals and dielectric, exotic types of surface waves such as Dyakonov plasmons and hybrid plasmons can appear.…”

Optical performance of hybrid metal‐insulator‐metal plasmonic waveguide for low‐loss and efficient photonic integration

“…Whereas, the plasmonic waveguides have the ability to achieve the significant optical confinement with the waveguide dimension in the order of ≤100 nm. Surface plasmon polariton (SPP) waves, called as the electromagnetic surface waves (ESWs), are guided by the planar interface of two materials, one of which is a metal (with a negative real part in relative permittivity) and the other is dielectric (usually, the relative permittivity has a positive real part) . The surface plasmonic waveguide has the potential to send both photonic and electronic signals along the same circuit, which establishes a bridge between electronic and optical technologies.…”

“…Surface plasmon polariton (SPP) waves, called as the electromagnetic surface waves (ESWs), are guided by the planar interface of two materials, one of which is a metal (with a negative real part in relative permittivity) and the other is dielectric (usually, the relative permittivity has a positive real part). 3,4 The surface plasmonic waveguide has the potential to send both photonic and electronic signals along the same circuit, which establishes a bridge between electronic and optical technologies. Moreover, due to the presence of the metal, the plasmonic waveguides are usually suffering with large ohmic loss.…”