967 citations · 2k across the 9 of their papers we have counts for
6 papers · 1 filter
Controlling the Infrared Dielectric Function through Atomic-Scale Heterostructures
Daniel C. Ratchford, Christopher J. Winta, Ioannis Chatzakis +20
Surface phonon polaritons (SPhPs) - the surface-bound electromagnetic modes of a polar material resulting from the coupling of light with optic phonons - offer immense technologica…
Active Tuning of Surface Phonon Polariton Resonances via Carrier Photoinjection
Adam D. Dunkelberger, Chase T. Ellis, Daniel C. Ratchford +10
Surface-phonon polaritons (SPhPs) are attractive alternatives to far-infrared plasmonics for sub-diffractional confinement of light. Localized SPhP resonances in semiconductor nano…
Ultra-low-loss Polaritons in Isotopically Pure Materials: A New Approach
Alexander J. Giles, Siyuan Dai, Igor Vurgaftman +12
Conventional optical components are limited to size-scales much larger than the wavelength of light, as changes in the amplitude, phase and polarization of the electromagnetic fiel…
Imaging of anomalous internal reflections of hyperbolic phonon-polaritons in hexagonal boron nitride
Alexander J Giles, Siyuan Dai, Orest J Glembocki +10
We use scanning near-field optical microscopy to study the response of hexagonal boron nitride nanocones at infrared frequencies, where this material behaves as a hyperbolic medium…
Photoinduced tunability of the Reststrahlen band in 4H-SiC
Bryan T. Spann, Ryan Compton, Daniel Ratchford +6
Materials with a negative dielectric permittivity (e.g. metals) display high reflectance and can be shaped into nanoscale optical-resonators exhibiting extreme mode confinement, a…
Sub-diffractional, volume-confined polaritons in a natural hyperbolic material: hexagonal boron nitride
Joshua D. Caldwell, Andrey Kretinin, Yiguo Chen +12
Strongly anisotropic media where the principal components of the dielectric tensor have opposite signs are called hyperbolic. Such materials length exhibit unique nanophotonic prop…