2 papers
physics.optics2026
Extreme Optical Field Confinement and Enhancement in a Plasmonic Picopatch within a Nanoparticle-on-Mirror Resonator
Jinna He, Mario Zapata-Herrera, Xabier Arrieta +4
Plasmonic resonances in metallic nanogaps can confine light into nanometric regions, but reaching modes of volume nm remains challenging. We present a detailed theo…
physics.optics2026
Atomic-scale Stark-shift spectroscopy and microscopy of organic molecules
Xabier Arrieta, Sofia Canola, Ruben Esteban +2
In conventional optical Stark-shift spectroscopy, molecules are exposed to spatially homogeneous static electric fields that shift the energies of their spectral lines. These shift…