5 papers
Unified light-matter metric of molecular and nanophotonic chirality
Kevin N. Moser, Marc R. Bourgeois, David J. Masiello
Signatures of a material object's broken inversion symmetry within its intrinsic excitations and associated optical fields have largely evaded characterization from a perspective t…
Conservation of Pseudoangular Momentum in the Radiative Emission and Optical Excitation of Valley-Polarized Surface Lattice Resonances
Siamak Khorasani, Marc R. Bourgeois, David J. Masiello
Surface lattice resonances (SLRs) are collective polaritonic excitations in nanoparticle arrays, with band-edge states enabling symmetry-based control of radiation including scatte…
Probing Plasmonic Oscillations in 2D Moiré Nanocrystal Superlattices by Low-Loss EELS
Swarnendu Das, Shengsong Yang, Kevin N. Moser +5
Electron energy loss spectroscopy (EELS) has been established as a powerful analytical technique for investigating the oxidation state, band structure, and dielectric properties of…
Conservation of optical chirality in nanoscale light-matter interactions: A study of the Born-Kuhn model system
Kevin N. Moser, Marc R. Bourgeois, Elliot K. Beutler +1
Optical chirality density is a measure of the local handedness of electromagnetic fields. Like energy density, it may be absorbed or scattered through the interaction between light…
Strategy for Direct Detection of Chiral Phonons with Phase-Structured Free Electrons
Marc R. Bourgeois, Andrew W. Rossi, David J. Masiello
Chiral phonons possessing valley pseudo angular momentum (PAM) underlie a diversity of quantum phenomena of fundamental and applied importance, but are challenging to probe directl…