Abstract

Photonic moiré-like lattices, a readily accessible platform for realizing the spatial localization of light, attract intensive attention due to their unique flatband characteristics. In this paper, a periodic moiré-like lattice with embedded defects is proposed theoretically, and the linear propagation of the probe beam in such a system is investigated intensively. The results show that the positions of defects in periodic moiré-like lattices depend on the sublattice rotation angle. Further studies show that the localization of light could be improved by adjusting the apodization function of defects. In addition, the experimental observation of the moiré-like lattice with apodized defects also confirms the theoretical analysis. Our study enriches the physical connotation of photonic moiré lattices and guides the design of novel photonic crystal fibers.

© 2022 Optica Publishing Group

Periodic evolution of the out-of-phase dipole and the single-charged vortex solitons in periodic photonic moiré lattice with saturable self-focusing nonlinearity media

Yingying Zhang, Yali Qin, Huan Zheng, and Hongliang Ren
Opt. Express 30(16) 28840-28852 (2022)

Localization-to-delocalization transition of light in frequency-tuned photonic moiré lattices

Jiongchao Zeng, Yanwen Hu, Xin Zhang, Shenhe Fu, Hao Yin, Zhen Li, and Zhenqiang Chen
Opt. Express 29(16) 25388-25398 (2021)

Defect-controlled transverse localization of light in disordered photonic lattices

Dragana M. Jović, Milivoj R. Belić, and Cornelia Denz
J. Opt. Soc. Am. B 30(4) 898-903 (2013)

Generation of gradient photonic moiré lattice fields

Chunlei Shang, Chengzhen Lu, Siwei Tang, Yuanmei Gao, and Zengrun Wen
Opt. Express 29(18) 29116-29127 (2021)

Photonic Moiré lattice waveguide with a large slow light bandwidth and delay-bandwidth product

Ibrahim Nasidi, Ran Hao, Jun Chen, Erping Li, and ShangZhong Jin
Appl. Opt. 61(19) 5776-5781 (2022)