Twistronics for photons: Opinion

Abstract

A pair of stacked two-dimensional heterostructures suitably rotated with respect to each other support exotic electronic properties with interesting implications for nanoelectronics and quantum technologies. A similar paradigm can be extended to light, offering a great promise for emerging low-dimensional nanophotonic heterostructures. In this Opinion article, we discuss emerging photonic responses enabled by twisting and stacking suitably tailored nanostructures. We discuss how the multi-physics interactions of light with matter in twisted bilayers can tailor their photonic response and engineer light dispersion in extreme ways. We conclude by providing an outlook on this emerging field of research and its potential for classical and quantum light manipulation at the nanoscale. © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement