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Photonic band properties of the moiré Kagome lattice.

Authors :
Fu, Yikai
Zhang, Yu
Dai, Haitao
Gao, Meini
Hao, Xichen
Arain, Samia
Ahmad, Aneela
Wang, Yuhan
Li, Jia
Mohamed, Zolkefl A. Y.
Chen, Zhenda
Cao, Yaxian
Wang, Ruotong
Yao, Buyi
Lu, Qieni
Liu, Changlong
Liu, Ying
Feng, Shouzhong
Source :
Journal of Applied Physics. 2/28/2024, Vol. 135 Issue 8, p1-7. 7p.
Publication Year :
2024

Abstract

Inspired by the emerging field of twistronics, moiré photonic structures have attracted great interest. In this paper, we introduce the concept of the moiré Kagome lattice (MKL), which arises from the overlapping of a Kagome lattice at a commensurable angle of 38.211°. MKL exhibits a significantly broader main photonic bandgap (PBG) when compared to the traditional Kagome lattice. Through numerical simulations, we delved into the adjustable properties of the PBG of MKL by varying lattice parameters, including filling factors and materials. Meanwhile, we also observed the presence of photonic flatbands within the MKL structure. Specifically, the emergence of a super flat isolated flatband aids in achieving single-mode omnidirectional lasers and enhancing the omnidirectional electromagnetic interaction of materials, thereby expanding the applications of moiré photonic crystals. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00218979
Volume :
135
Issue :
8
Database :
Academic Search Index
Journal :
Journal of Applied Physics
Publication Type :
Academic Journal
Accession number :
175797278
Full Text :
https://doi.org/10.1063/5.0190395