Rotationally displaced electric field intensity distribution around square nanoantennas induced by circularly polarized light
arXiv:2311.15133 · doi:10.1103/PhysRevB.109.035428
Abstract
An optical field around regular polygon metal nanostructures excited by circularly polarized light can exhibit rotationally displaced intensity distributions. Although this phenomenon has been recognized, its underlying mechanisms has not been sufficiently explained. Herein, finite-difference time-domain simulations and model analyses reveal that the rotationally displaced optical intensity distribution can be generated when each of the linear polarization components that constitute circular polarization excites a superposition of multiple modes. The proposed model reasonably explains the rotationally displaced patterns for a square nanoantenna and other regular-polygon nanoantennas.
arXiv comment5pages, 5 figures
References in corpus (6)
- Chiral plasmonics
- Characterizing optical chirality
- Hydrogen-regulated chiral nanoplasmonics
- 1,000-Fold Enhancement of Light-Induced Magnetism in Plasmonic Au Nanoparticles
- Local Optical Chirality Induced by Near-Field Mode Interference in Achiral Plasmonic Metamolecules
- Optical Torque from Enhanced Scattering by Multipolar Plasmonic Resonance