2017/05/31 by Ivan S. Sinev, Ivan Sinev, Andrey A. Bogdanov +15 · 1 citation
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Chemistry #Chirality (physics) #Circular polarization #Condensed matter physics #Dielectric #Dipole #Metamaterials and Metasurfaces Applications #Microstrip #Optics #Optoelectronics #Orbital Angular Momentum in Optics #Physics #Plasmon #Plasmonic and Surface Plasmon Research #Polarization (electrochemistry) #Quantum mechanics #Surface plasmon #Surface plasmon polariton #Surface wave #physics.optics
paper · pdf · doi:10.1002/lpor.201700168
added relevant references; fixed typos in Supplementary eq. 8,9,11
arxiv created 2017/06/05 · openalex publication_date 2017/09/01 · arxiv updated 2017/09/15 · openalex created_date 2017/09/25 · openalex updated_date 2026/08/05
Abstract Surface electromagnetic waves are characterized by the intrinsic spin‐orbit interaction which results in the fascinating spin‐momentum locking. Therefore, directional coupling of light to surface waves can be achieved through chiral nanoantennas. Here, we show that dielectric nanoantenna provides chiral response with strong spectral dependence due to the interference of electric and magnetic dipole momenta when placed in the vicinity of the metal‐air interface. Remarkably, chiral behaviour in the proposed scheme does not require elliptical polarization of the pump beam or the geometric chirality of the nanoantenna. We show that the proposed ultracompact and simple dielectric nanoantenna allows for both directional launching of surface plasmon polaritons on a thin gold film and their demultiplexing with a high spectral resolution.