Acta Optica Sinica, Volume. 41, Issue 19, 1913001(2021)
Unidirectional Wave Guide Based on Valley Hall Effect in Optical Communication Band
In this paper, we propose a unidirectional wave guide based on valley Hall effect, which is composed of two kinds of photonic crystals with different topological properties. These two kinds of photonic crystals are composed of Al70Ga30As and Si dielectric cylinders, which can realize the unidirectional passage of light in the communication band. The simulation results show that the proposed structure can not only realize the large angle turn of the optical path, but also has good tolerance to defects, which provides a reference for the design of new optical waveguides with efficient optical transmission characteristics.
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Xuemei Li, Mingda Zhang, Xiaodong Zhu, Yibiao Yang, Hongming Fei, Binzhao Cao, Xin Liu, Yamin Zhang. Unidirectional Wave Guide Based on Valley Hall Effect in Optical Communication Band[J]. Acta Optica Sinica, 2021, 41(19): 1913001
Category: Integrated Optics
Received: Feb. 8, 2021
Accepted: Apr. 29, 2021
Published Online: Oct. 29, 2021
The Author Email: Zhang Mingda (zhangmingda@tyut.edu.cn)