Open AccessGeneration of gradient photonic moiré lattice fields
Author(s) -
Chunlei Shang,
Chengzhen Lu,
Siwei Tang,
Yuanmei Gao,
Zengrun Wen
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.434935
Subject(s) - superposition principle , hexagonal lattice , moiré pattern , optics , photonics , photonic crystal , lattice (music) , holography , physics , materials science , hexagonal crystal system , condensed matter physics , acoustics , chemistry , quantum mechanics , antiferromagnetism , crystallography
We designed and generated gradient photonic moiré lattice fields comprising three varying periodic moiré wavefields. Because of the common twisted angles between periodic triangular and hexagonal moiré wavefields, gradient patterns can be easily obtained through coherent superposition of hexagonal-triangular-hexagonal photonic moiré lattice fields. In addition, two specific twisted angles of Δα| C=3 and Δα| C=5 are proposed, which not only guarantee the periodicity of moiré fields but also provide an additional degree of freedom to control the structural arrangement of the gradient photonic moiré lattice fields. Further study reveals the non-diffracting character of the gradient photonic moiré lattice field generated using the holographic method. This study proposes an easy way to generate and control the structures of gradient moiré lattice fields that can be used to fabricate photonic lattices in optical storage media for light modulation.