Twisted lattice nanocavity with theoretical quality factor exceeding 200 billion

Bibliographic Details
Title: Twisted lattice nanocavity with theoretical quality factor exceeding 200 billion
Authors: Ren-Min Ma, Hong-Yi Luan, Zi-Wei Zhao, Wen-Zhi Mao, Shao-Lei Wang, Yun-Hao Ouyang, Zeng-Kai Shao
Source: Fundamental Research, Vol 3, Iss 4, Pp 537-543 (2023)
Publisher Information: KeAi Communications Co. Ltd., 2023.
Publication Year: 2023
Collection: LCC:Science (General)
Subject Terms: Nanocavities, Twisted lattice, Quality factor, Mode volume, Flatband, Mode coupling, Science (General), Q1-390
More Details: Simultaneous localization of light to extreme spatial and spectral scales is of high importance for testing fundamental physics and various applications. However, there is a longstanding trade-off between localizing a light field in space and in frequency. Here we discover a new class of twisted lattice nanocavities based on mode locking in momentum space. The twisted lattice nanocavity hosts a strongly localized light field in a 0.048 λ3 mode volume with a quality factor exceeding 2.9 × 1011 (∼250 μs photon lifetime), which presents a record high figure of merit of light localization among all reported optical cavities. Based on the discovery, we have demonstrated silicon-based twisted lattice nanocavities with quality factor over 1 million. Our result provides a powerful platform to study light-matter interaction in extreme conditions for tests of fundamental physics and applications in nanolasing, ultrasensing, nonlinear optics, optomechanics and quantum-optical devices.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2667-3258
Relation: http://www.sciencedirect.com/science/article/pii/S2667325822004368; https://doaj.org/toc/2667-3258
DOI: 10.1016/j.fmre.2022.11.004
Access URL: https://doaj.org/article/2f2a18b31f814c9cb54ea2bff376f677
Accession Number: edsdoj.2f2a18b31f814c9cb54ea2bff376f677
Database: Directory of Open Access Journals
More Details
ISSN:26673258
DOI:10.1016/j.fmre.2022.11.004
Published in:Fundamental Research
Language:English