Multifrequency and Multimode Topological Waveguides in a Stampfli‐Triangle Photonic Crystal with Large Valley Chern Numbers (Laser Photonics Rev. 18(6)/2024).

The article titled "Multifrequency and Multimode Topological Waveguides in a Stampfli-Triangle Photonic Crystal with Large Valley Chern Numbers" discusses the observation of a multifrequency and multimode topological waveguide in Stampfli-triangle photonic crystals. The researchers, Bei Yan, Yiwei Peng, Jianjun Liu, Fei Gao, Shuangchun Wen, and their co-workers, have identified two topological edge states in low-frequency bands and four topological edge states in high-frequency bands. This discovery has the potential to enhance the efficiency and capacity of optical transmission and communication devices, expanding their application range. [Extracted from the article]