Measuring momentum-resolved dissipation of phonon-polaritons in LiNbO${}_3$ with terahertz driving

Megan F. Biggs, Rossella Acampora, Niccolò Sellati +5

Mapping the dispersion of polaritons, hybrid quasiparticles arising from light-matter coupling, can provide key insights into the material dielectric response, coupling strength, a…