Meta-Optical Chirality and Emergent Eigen-polarization Modes via Plasmon Interactions.
The response of an individual meta-atom is often generalized to explain the collective response of a metasurface in a manner that neglects the interactions between meta-atoms. Here, we study a metasurface composed of tilted achiral meta-atoms with no spatial variation of the unit cell that derives appreciable optical chirality solely from the asymmetric interactions between meta-atoms. The interactions between meta-atoms are considered to stem from the Lorentz force arising from the Larmor radiation of adjacent plasmonic resonators because their inclusion in a simple model accurately predicts the bonding/anti- bonding modes that are measured experimentally. We also experimentally observe the emergence of multiple polarization eigenmodes, among other polarization-dependent responses, which cannot be modeled with the conventional formalism of transmission matrices. Our results are vital to the precise characterization and design of metasurfaces.
The Graduate Center of CUNY, 365 5th Ave, New York, NY, 10016, USA.|Queens College of CUNY, 65-30 Kissena Blvd, Flushing Queens, NY, 11367, USA.
Matthew
M
Moocarme
The Graduate Center of CUNY, 365 5th Ave, New York, NY, 10016, USA.|Queens College of CUNY, 65-30 Kissena Blvd, Flushing Queens, NY, 11367, USA.
Nicholas V
NV
Proscia
The Graduate Center of CUNY, 365 5th Ave, New York, NY, 10016, USA.|Queens College of CUNY, 65-30 Kissena Blvd, Flushing Queens, NY, 11367, USA.
Luat T
LT
Vuong