By synchrotron infrared nanospectroscopy, we demonstrate modulation of momentum and group velocity of subdiffractional hyperbolic phonon-polaritons (HP2), in hexagonal boron nitride nanocrystals, by varying the SiO2 film ...

Os fenômenos ópticos de cristais polares de van der Waals, em escala nanométrica, ocorrem majoritariamente via formação de poláritons, que são quasi-partículas originárias do acoplamento entre fótons e ressonâncias ...

Microcavity exciton polaritons enable the resonant coupling of excitons and photons to vibrations in the super-high-frequency (SHF, 3-30 GHz) domain. We introduce here a novel platform for coherent SHF optomechanics based ...

Efficient generation of phonons is an important ingredient for a prospective electrically-driven phonon laser. Hybrid quantum systems combining cavity quantum electrodynamics and optomechanics constitute a novel platform ...

We demonstrate that resonant Brillouin light scattering using ultranarrow lasers and high-resolution spectrometers provides unique access to the polariton lifetimes, a key parameter in their formation and dynamics. In very ...

The nanophotonics of van der Waals (vdW) materials relies critically on the electromagnetic properties of polaritons defined on sub-diffraction length scales. Here, we use a full electromagnetic Hertzian dipole antenna ...

We presented an electromagnetic wave propagation in periodic and quasiperiodic (Fibonacci type) multilayer structures, intercalated by a graphene layer, using a theoretical model based on a transfer matrix treatment to ...