Plasmonic resonances of metallic moiré superlattices in the infrared range
Year: 2024
Type: article
Abstract: The recent surge of interest in moiré photonics arises from the possibility of exploring many groundbreaking physical phenomena in photonics. These phenomena include photonic topological states and magic-angle lasing, which offer an attractive platform for manipulating the flow and confinement of light from remarkably simple device geometries. In this work, we fabricate a series of metallic moiré superlattices supporting moiré plasmon polaritons and explore the moiré-potential induced plasmonic resonances. We demonstrate that two-dimensional moiré plasmonic superlattices exhibit transmittance and polarization-dependent responses because of the localized plasmonic resonances in the infrared range, whose modes have a near-flat dispersion band. Our findings hold the potential for the understanding of localized plasmonic resonances within moiré superlattices.
Source: Optics Express
DOI: 10.1364/oe.545868
Authors: Yuan Tian, Yuhan Du, Zhitong Sun, Shuangxiu Yuan, Wenbin Wu, Zeping Shi, Xiang Yuan, Xiaolong Zhu, Jian Wu
Institutions: East China Normal University, Shanxi University
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W4405686925