摘要
Lithium niobate(LiNbO_(3)) is a versatile crystalline material for various photonic applications. With the recent advances in LiNbO_(3)-on-insulator(LNOI) thin film technology, LiNbO_(3) has been regarded as one of the most promising platforms for multifunctional integrated photonics. In this work, we present the field enhancement due to collective resonances in arrayed LiNbO_(3) nanoantennas. These resonances arise from the enhanced radiative coupling of localized Mie resonances in the individual nanoparticles and Rayleigh anomalies due to in-plane diffraction orders of the lattice. We describe the pronounced differences in field enhancement and field distributions for electric and magnetic dipoles, offering valuable information for the design and optimization of high-quality-factor optical metasurfaces based on LiNbO_(3).
作者
Yuechen Jia
Yingying Ren
Xingjuan Zhao
Feng Chen
贾曰辰;任莹莹;赵兴娟;陈峰(School of Physics,State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China;Shandong Provincial Engineering and Technical Center of Light Manipulations&Shandong Provincial Key Laboratory of Optics and Photonic Device,School of Physics and Electronics,Shandong Normal University,Jinan 250014,China)
基金
supported by the National Key Research and Development Program of China(No.2019YFA0705000)
Major Program of Shandong Provincial Natural Science Foundation(No.ZR2018ZB0649)
the support from Taishan Scholars Youth Expert Program of Shandong Province
Qilu Young Scholar Program of Shandong University,China Taishan Scholars Climbing Program of Shandong Province for the support。
作者简介
Corresponding author:贾曰辰,yuechen.jia@sdu.edu.cn;Corresponding author:陈峰,drfchen@sdu.edu.cn。
