3 papers
physics.optics2026
Probing individual phonon-polaritonic nanoparticle-on-mirror cavities by infrared nanospectroscopy
Isabel Pascual Robledo, Iker Herrero León, Karol KoÅataj +4
Nanoparticle-on-mirror (NPoM) cavities enable extreme light confinement and strong light-matter interactions, but their realization with phonon-polariton materials in the mid-infra…
quant-ph2025
Description of ultrastrong light-matter interaction through coupled harmonic oscillator models and their connection with cavity-QED Hamiltonians
Unai Muniain, Javier Aizpurua, Rainer Hillenbrand +2
Classical coupled harmonic oscillator models are capable of describing the optical and infrared response of nanophotonic systems where a cavity photon couples to dipolar matter exc…
physics.optics2025
In-operando control of sum-frequency generation in tip-enhanced nanocavities
Philippe Roelli, Isabel Pascual, Iris Niehues +2
Sum-frequency generation (SFG) is a second-order nonlinear process widely used for characterizing surfaces and interfaces with monolayer sensitivity. Recently, optical field enhanc…