Rich hybridized-polarization surface phonon polaritons in hyperbolic metamaterials

Abstract

We investigated hybridized-polarization surface phonon polaritons (HSPhPs) of transversely truncated a metamaterial (MM) that consists of alternating ionic-crystal and ordinary-dielectric layers. We predicted five HSPhPs in the reststrahlen frequency window of ionic-crystal layers, which belong to five different types, respectively. One is of Dyakonov-like type and another is traditional-like. The other three HSPhPs are of new type. We used a numerical-simulating method of attenuated total reflection (ATR) measurements to examine them. The obtained ATR spectra also demonstrate that they are observable and exhibit their polarization features. These results expand the potential-application space of phononics and photonics in the infrared to the terahertz range.

Above-light-line Nonlinear Surface Polaritons near a Conductive Interface: Threshold Case

“…Subwavelength localization of SPP field around the interface allows to reduce dimensions of plasmonic devices under diffraction limit [3]; strong enhancement of the SPP localized field enlarges nonlinear response of their guiding structure [4]; the SPP field distribution with peak at the interface leads to high sensitivity of the waves to any changes in the interface properties [5]. Surface polaritons were extensively investigated at the surfaces of dielectrics [1,6], ferromagnetics [7], magnetic-semiconductor superlattices [8], metamaterials of hyperbolic [9] and nonlinear [10,11] types, etc. A lot of SPP-based plasmonic devices and structures have been suggested and fabricated: modulators [12,13], switches [13], waveguides [14], nanolasers [15], logic gates [16], chemical and biological sensors [17].…”