3 papers
physics.optics2025
Emission dynamics and spectrum of a nanoshell-based plasmonic nanolaser spaser
Ashod Aradian, Andres Cathey, Karen Caicedo +4
We study theoretically the emission and lasing properties of a single nanoshell spaser nanoparticle, or plasmonic nanolaser, made of an active core (gain material) and a plasmonic…
physics.optics2025
Mode-dependent Emission Thresholds and Frequencies in Metal Nanoparticles within Gain-enhanced Media
Karen Caicedo, Nicole Recalde, Milena Mora +5
We present a mode-resolved analysis of emission thresholds in metal nanoparticles embedded within an infinite gain medium, using Mie scattering theory as a rigorous framework. Focu…
physics.optics2025
High-Accuracy Dispersion Surfaces Measurement Unlocks Photonic Crystal Slabs Topology
Karen Caicedo, Fabrizio Sgrignuoli, Adam Schwartzberg +5
Characterization of dispersion surfaces (DS) in photonic crystals (PhCs) can predict striking topological features, such as bound states in the continuum (BICs). Precise measuremen…