Journal Article

Far-field coupling between moiré photonic lattices

Wang, Yi, Tan, Max J. H., Guan, Jun, Schatz, George C., Hu, Jingtian, Odom, Teri W.

2023

Overview

Superposing two or more periodic structures to form moiré patterns is emerging as a promising platform to confine and manipulate light. However, moiré-facilitated interactions and phenomena have been constrained to the vicinity of moiré lattices. Here we report on the observation of ultralong-range coupling between photonic lattices in bilayer and multilayer moiré architectures mediated by dark surface lattice resonances in the vertical direction. We show that two-dimensional plasmonic nanoparticle lattices enable twist-angle-controlled directional lasing emission, even when the lattices are spatially separated by distances exceeding three orders of magnitude of lattice periodicity. Our discovery of far-field interlattice coupling opens the possibility of using the out-of-plane dimension for optical manipulation on the nanoscale and microscale. An ultralong-range coupling was demonstrated between photonic lattices in bilayer and multilayer moiré architectures, which is mediated by dark surface lattice resonances in the vertical direction.

• Publisher: Nature Publishing Group UK,Nature Publishing Group
• Subject: 639/624/1020 / 639/925/927/1021 / Bilayers / Chemistry and Materials Science / Coupling / Electric fields / Electromagnetism / Emissions control / Far fields / Glass substrates / Lattices / Light / Materials Science / Moire patterns / Multilayers / Nanoparticles / Nanotechnology / Nanotechnology and Microengineering / Periodic structures / Periodicity / Photonics