Abstract
The manipulation of light at the nanoscale is important for nanophotonic research. Lithium niobite (LiNbO3), as an ideal building block for metamaterials, has attracted great interest for its unique properties in the field of nonlinear optics. In this paper, we numerically studied the effect of different substrates on the optical resonances of a LiNbO3 nanoparticle. The results show that the electric and magnetic resonances of such a system can be effectively adjusted by changing the substrate. Compared to the impact of dielectric substrate, the interaction between the LiNbO3 nanoparticle and the Au film shows a fascinating phenomenon that a sharp resonance peak appears. The multipole decomposition of the scattering spectrum shows that the size, shape of the LiNbO3 nanoparticle, and the thickness of the SiO2 film between the particle and the Au film have a significant impact on the electromagnetic resonance of the LiNbO3 nanoparticle. This work provides a new insight into LiNbO3 nanoparticles, which may have potential use in the design of dielectric nanomaterials and devices.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Jiangsu Province
Jiangsu Provincial Double-Innovation Doctor Program
China Postdoctoral Science Foundation
Subject
General Materials Science,General Chemical Engineering
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献