Controlled Electric and Magnetic Hot Spots in All-Dielectric Metasurfaces with High-Q Resonances

• DOI: 10.1021/acs.jpcc.3c04275
• Publication Date: 2023-09-28T12:42:24Z
• Authors: Weimin Yang; Yonglin He; Shengjie Jiang; Liqiang Zhuo; Jingyu Wang
• Keywords: Nanorod

The precise control over the locations of hot spots in a nanostructured ensemble is great importance enhanced spectroscopy, super-resolution optical imaging, sensors, slow light, and beam-steering devices. However, for all-dielectric multiparticle configurations, are difficult to predict due complex coupling resonance modes. In this work, theoretical simulations based on metasurfaces with high-Q resonances that can be efficiently controlled nanorod–nanorod gaps or nanorod interior by suppressing promoting specific-mode effects specific polarization state incident light. These findings offer an avenue realize high-performance filters, modulators prompting applications.