Efficient high harmonic generation in nonlinear photonic moiré superlattice

• Published in: Frontiers of physics Vol. 18; no. 5; p. 52305
• Main Authors: Ning, Tingyin, Ren, Yingying, Huo, Yanyan, Cai, Yangjian
• Format: Journal Article
• Language: English
• Published: Beijing Higher Education Press 01.10.2023; Springer Nature B.V
• Subjects: Astronomy; Astrophysics and Cosmology; Atomic; Condensed Matter Physics; Efficiency; harmonic generation; Harmonic generations; Light; Luminous intensity; moiré superlattice; Molecular; Nonlinear optics; Optical and Plasma Physics; Optics; Particle and Nuclear Physics; Photonics; Physics; Physics and Astronomy; Research Article; resonant mode; Silicon; Superlattices; moiré superlattice; harmonic generation; resonant mode

Photonic moiré superlattice as an emerging platform of flatbands can tightly confine the light inside the cavity and has important applications not only in linear optics but also in nonlinear optics. In this paper, we numerically investigate the third- and fifth-order harmonic generation (THG and FH...