Low-loss, infrared and terahertz nanophotonics using surface phonon polaritons

By Joshua D. Caldwell, L. Lindsay, Vincenzo Giannini, I. Vurgaftman, T. Reinecke, S. A. Maier, O. Glembocki. 2015

687 citations recorded by the source corpus.

Abstract The excitation of surface-phonon-polariton (SPhP) modes in polar dielectric crystals and the associated new developments in the field of SPhPs are reviewed. The emphasis of this work is on providing an understanding of the general phenomenon, including the origin of the Reststrahlen band, the role that optical phonons in polar dielectric lattices play in supporting sub-diffraction-limited modes and how the relatively long optical phonon lifetimes can lead to the low optical losses observed within these materials. Based on this overview, the achievements attained to date and the potential technological advantages of these materials are discussed for localized modes in nanostructures, propagating modes on surfaces and in waveguides and novel metamaterial designs, with the goal of realizing low-loss nanophotonics and metamaterials in the mid-infrared to terahertz spectral ranges.

View Paper: https://www.semanticscholar.org/paper/9c6d787fc4029b7c5cf17109fa7baafae0650d40

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Citations in the corpus

All-dielectric nanophotonics: the quest for better materials and fabrication techniques (2017, unknown): “In polar crystals, the high index is related to a single phonon resonance, so that it is accompanied by a large absorption coefficient [64].”
Phonon-polaritonics: enabling powerful capabilities for infrared photonics (2019, background): “These modes share similar characteristics to SPPs [38] and are so analogously called surface phonon polaritons (SPhPs) [18, 184].”
Polaritons in layered two-dimensional materials. (2016, background): “Because of the optical phonon origin of PhPs, these modes are observed in the THz to mid-infrared spectral ranges[25], as summarized in Fig.”
Optical absorbers based on strong interference in ultra‐thin films (2016, background): “Materials with a Reststrahlen band at a desired wavelength can be found across the entire mid- and far-infrared spectral range, from 6⁡μm to 300 μm [76].”