Laser & Optoelectronics Progress, Volume. 59, Issue 3, 0316001(2022)
A Few-Mode Waveguide Structure Based on Kagome Lattice
In this paper, a new concept of few-mode waveguide is proposed. Based on the plane-wave expansion method and the finite-difference time-domain method, this concept is demonstrated in the Kagome lattice line defect structure. By changing the parameters of defective dielectric columns (radius, location) and inserting new defective columns between original medium columns, a two-mode Kagome lattice waveguide structure with a bandwidth of 0.08888ωa/2πc is obtained. This few-mode waveguide structure provides a new idea for the design of photonic crystal planar waveguide and will have important application value in photonic integration and other fields.
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Yanhong Yao, Lü Qieni, Xiaopeng Chen, Mingdi Zhang, Miaomiao Zhang. A Few-Mode Waveguide Structure Based on Kagome Lattice[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0316001
Category: Materials
Received: Mar. 16, 2021
Accepted: May. 13, 2021
Published Online: Jan. 24, 2022
The Author Email: Qieni Lü (qienil@tju.edu.cn)