TY - GEN
T1 - Topological effects in plasmonic metasurfaces
AU - Gorodetski, Y.
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Light-matter interactions in chiral structure can induce strong polarization selectivity. Specifically, an optical activity in a form of polarization rotation and a circular dichroism may be controlled by the the mirror symmetry breaking of the unit-cell geometry. We design and experimentally investigate plasmonic metasurfaces with spatially varying chiral geometry and demonstrate how this architecture may lead to a geometric Berry phase. Our designed structure produces a polarization-dependent diffraction of nearly linear states. We experimentally examine the diffraction orders and show that they are topological in nature. Moreover, the influence of various geometrical factors is also investigated.
AB - Light-matter interactions in chiral structure can induce strong polarization selectivity. Specifically, an optical activity in a form of polarization rotation and a circular dichroism may be controlled by the the mirror symmetry breaking of the unit-cell geometry. We design and experimentally investigate plasmonic metasurfaces with spatially varying chiral geometry and demonstrate how this architecture may lead to a geometric Berry phase. Our designed structure produces a polarization-dependent diffraction of nearly linear states. We experimentally examine the diffraction orders and show that they are topological in nature. Moreover, the influence of various geometrical factors is also investigated.
UR - http://www.scopus.com/inward/record.url?scp=85142779549&partnerID=8YFLogxK
U2 - 10.1109/Metamaterials54993.2022.9920897
DO - 10.1109/Metamaterials54993.2022.9920897
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AN - SCOPUS:85142779549
T3 - 2022 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022
SP - X175-X177
BT - 2022 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022
Y2 - 12 September 2022 through 17 September 2022
ER -