Moiré bilayer grating

Flatband-enhanced THG

This moiré bilayer grating forms Bloch flatbands via interlayer coupling contrast, experimentally demonstrating enhanced third-harmonic generation.

Che, Zhiyuan · Wang, Jiajun · Liu, Wenzhe · Dai, Yunyun · Shi, Lei · Zi, Jian

Nano Letters 2025

Advantages

Experimental demonstration of third-harmonic generation enhancement facilitated by moiré-induced flatbands

Established a resonance-enhanced photon scattering setup to directly measure Bloch flatbands