5 papers
Nonlocal Response of Polar Nanostructures
C. R. Gubbin, S. De Liberato
Polar dielectric nanoresonators can support hybrid photon-phonon modes termed surface phonon polaritons with lengthscales below the diffraction limit. In the deep sub-wavelength re…
Theory of Optical Nonlocality in Polar Dielectrics
Christopher R. Gubbin, Simone De Liberato
Sub-wavelength confinement of mid-infrared light can be achieved exploiting the metal-like optical response of polar dielectric crystals in their Reststrahlen spectral region, wher…
Strong Coupling of Epsilon-Near-Zero Phonon Polaritons in Polar Dielectric Heterostructures
Nikolai Christian Passler, Christopher R. Gubbin, Thomas Graeme Folland +7
We report the first observation of epsilon near zero (ENZ) phonon polaritons in an ultrathin AlN film fully hybridized with surface phonon polaritons (SPhP) supported by the adjace…
Theory of four-wave-mixing in phonon polaritons
Christopher R. Gubbin, Simone De Liberato
Third order anharmonic scattering in light-matter systems can drive a wide variety of practical and physically interesting processes from lasing to polariton condensation. Motivate…
Theory of nonlinear polaritonics: scattering on a -SiC surface
Christopher R. Gubbin, Simone De Liberato
In this article we provide a practical prescription to harness the rigorous microscopic, quantum level descriptions of light-matter systems provided by Hopfield diagonalisation for…