Nanoscale Probing of Localized Surface Phonon Polaritons in SiC Nanorods with Swift Electrons

Abstract

Surface phonon polaritons hold much potential for subwavelength control and manipulation of light at the infrared to terahertz wavelengths. Here, aided by monochromatic scanning transmission electron microscopy - electron energy loss spectroscopy technique, we study the excitation of optical phonon modes in SiC nanorods. Surface phonon polaritons are modulated by the geometry and size of SiC nanorods. In particular, we study the dispersion relation, spatial dependence and geometry and size effects of surface phonon polaritons. These experimental results are in agreement with dielectric response theory and numerical simulation. Providing critical information for manipulating light in polar dielectrics, these findings should be useful for design of novel nanoscale phonon-photonic devices.

References in corpus (8)

• Optical excitations in electron microscopy
• Band structure diagram paths based on crystallography
• MNPBEM - A Matlab toolbox for the simulation of plasmonic nanoparticles
• Giant phonon anomalies and central peak due to charge density wave formation in YBa${}_2$Cu${}_3$O${}_{6.6}$
• Probing low-energy hyperbolic polaritons in van der Waals crystals with an electron microscope
• Plasmonic crystals for ultrafast nanophotonics: Optical switching of surface plasmon polaritons
• Vibrational surface EELS probes confined Fuchs-Kliewer modes
• Size-dependent lattice dynamics of atomically precise cadmium selenide quantum dots

Cited by in corpus (5)

• Four-dimensional Vibrational Spectroscopy for Nanoscale Mapping of Phonon Dispersion in BN Nanotubes
• Broad-Spectral-Range Sustainability and Controllable Excitation of Hyperbolic Phonon Polaritons in $\alpha$-MoO3
• Electron-plasmon interaction induced plasmonic-polaron band replication in epitaxial perovskite SrIrO${}_3$ films
• Strongly confined Mid-infrared to Terahertz Phonon Polaritons in Ultra-thin SrTiO3
• Electron microscopy probing electron-photon interactions in SiC nanowires with ultra-wide energy and momentum match