Abstract
There has been increasing interest in so-called phononic materials, which can support surface modes known as surface phonon polaritons, consisting of electromagnetic waves coupled to lattice vibrations at the surface of a polar material. While such excitations have a variety of desirable features, they are limited to the spectral range between a material's longitudinal and transverse optical phonon frequencies. In this work, we demonstrate that for materials whose free-carrier concentrations can be controlled, hybrid plasmonic/phononic modes can be supported across a range of frequencies including those generally forbidden by purely phononic materials.
Original language | English (US) |
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Pages (from-to) | 1-8 |
Number of pages | 8 |
Journal | MRS Communications |
Volume | 6 |
Issue number | 1 |
DOIs | |
State | Published - Mar 1 2016 |
ASJC Scopus subject areas
- Materials Science(all)