Chirality encoding in resonant metasurfaces governed by lattice symmetries
Abstract
Chiral metasurfaces provide invaluable tools capable of controlling structured light required for biosensing, photochemistry, holography, and quantum photonics. Here we suggest and realize a universal strategy for controlling the chiral response of resonant metasurfaces via the interplay of meta-atom geometry and lattice arrangements within all five possible planar Bravais symmetries. By introducing chiral gradient metasurfaces, we illustrate how our approach allows producing a predictable chiral response tunable by simple parameter variations. We highlight that symmetry-controlled chiral response provides an additional degree of freedom in optical signal processing, and showcase this with simultaneous mid-IR image encoding in two fundamental quantities, transmission and circular dichroism. Our proposed concept represents a universal toolkit for on-demand design and control of chiral metastructures that has potential for numerous applications in life sciences, quantum optics and more.
Keywords
Cite
@article{arxiv.2412.20955,
title = {Chirality encoding in resonant metasurfaces governed by lattice symmetries},
author = {Ivan Sinev and Felix Ulrich Richter and Ivan Toftul and Nikita Glebov and Kirill Koshelev and Yongsop Hwang and David G. Lancaster and Yuri Kivshar and Hatice Altug},
journal= {arXiv preprint arXiv:2412.20955},
year = {2024}
}