Work

Topological Photonic Crystal in Microwave Region Based on Coupled Superconducting Resonators

Year: 2024

Type: article

Abstract: Topological photonics has been widely investigated due to its profound physical significance and great number of potential applications. Microwaves have long wavelengths, so it is relatively easy to manufacture large-sized microwave photonic crystals, enabling researchers to observe and measure phenomena such as topological boundary states. Nevertheless, the quality factors (QFs) of most resonators composed of traditional materials in the microwave region are relatively low, leading to topological edge states with high decay rates. In this study, we present a one-dimensional topological photonic crystal in the microwave region based on coupled superconducting resonators. A topological state with a QF as high as 6000 is observed, which proves this to be a new platform for the investigation of topological photonics with low decay rates in the microwave regime.

Source: Symmetry

DOI: 10.3390/sym16040453

Authors: Tianning Zheng, Xiaoyang Chang, Juntian Huang, Yilun Liu, Jiaqi Wei, Qi Guo

Institutions: Beihang University, University of Bristol

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,728

Funder: National Natural Science Foundation of China