Light matter interaction in van der Waals heterostructures with Mie voids
Abstract
Recently introduced concept of Mie voids allows to enhance the field localization inside air cavities embedded in high-index materials. Mie voids provide an alternative approach to conventional dielectric resonators that confine optical fields within bulk high-index materials. Building on this concept, here we present a hybrid photonic platform that integrates monolayer WS2 with Mie void resonators patterned in a high-index Bi2Te3 substrate. By carefully aligning the dipolar void resonance with the excitonic transition of WS2, we achieve substantially enhanced photoluminescence and second-harmonic generation. Far-field imaging of the harmonic fields reveals spatially resolved hotspots that directly map localized resonant modes, with their positions tunable by cavity geometry and pump wavelength. This approach enables real-space control of nonlinear emission at the single-resonator level, offering a robust and reconfigurable platform for next-generation nonlinear photonics and surface-enhanced optical sensing.
Keywords
Cite
@article{arxiv.2512.16198,
title = {Light matter interaction in van der Waals heterostructures with Mie voids},
author = {Zhuoyuan Lu and Kirill Koshelev and Pavel Tonkaev and Ziyu Chen and Dawei Liu and Wenkai Yang and Yuri Kivshar and Yuerui Lu},
journal= {arXiv preprint arXiv:2512.16198},
year = {2025}
}