Design of a Hyperbolic Metamaterial as a Waveguide for Low-Loss Propagation of Plasmonic Wave

Abstract

A stratiform hyperbolic metamaterial comprises multiple units of symmetrical metal-dielectric film, stacked to have a precisely equivalent refractive index, admittance, and iso-frequency curve. A metamaterial that is composed of stacks of symmetrical films as a waveguide to couple a diffracted wave into a horizontally propagating plasmonic wave is designed herein. By tuning the parameters of the constituent thin films within a hyperbolic metamaterial, both the loss of the plasmonic wave and admittance matching are minimized and optimized, respectively.

Thermally Stable 3D‐Metamaterial Designs with Advanced Hyperbolic Dispersion Manipulation and Magnetic Anisotropy

“…[1][2][3] This opposite sign in real permittivity leads to an open hyperboloid isofrequency contour (IFC), which can support large wave-vectors as well as enhance the photonic density of the state. Such unique wave propagation characteristics in hyperbolic metamaterials (HMMs) lead to intriguing optical phenomena with potential application in subdiffraction imaging, [4][5][6][7] high-sensitivity sensing, [8][9][10] waveguiding, [11][12][13] etc. Most HMMs consist of a periodic arrangement of metal-dielectric components based on effective medium theory.…”

Strain‐Driven Thermal and Optical Instability in Silver/Amorphous‐Silicon Hyperbolic Metamaterials

“…Multilayers are the most common realization of HMMs. [ 12 ] Of special interest is the interaction of temperature with multilayer HMMs, either in wavelength‐switchable temperature‐actuated hyperlenses [ 13 ] and super absorbers [ 14 ] or in applications with high operating temperatures such as thermophotovoltaics, [ 15,16 ] hyperthermia therapy, [ 17,18 ] or radiative cooling. [ 19–21 ] However, one of the key challenges for all of these proposed applications is thermal stability.…”