2019/07/31 by Orad Reshef, Md Saad-Bin-Alam, M. Saad Bin-Alam +8 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Fano resonance #Lattice (music) #Materials science #Metamaterials and Metasurfaces Applications #Miniaturization #Nanotechnology #Optics #Optoelectronics #Orbital Angular Momentum in Optics #Physics #Plasmon #Plasmonic and Surface Plasmon Research #Q factor #Resonator #Surface plasmon #physics.optics
paper · pdf · doi:10.1021/acs.nanolett.9b02638
published as Nano Letters 19, 6429 - 6434 (2019) · 8 pages, 4 figures, includes MATLAB code in Supplementary Materials
arxiv created 2019/08/16 · openalex publication_date 2019/08/27 · arxiv updated 2019/09/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Resonant metasurfaces are devices composed of nanostructured subwavelength scatterers that generate narrow optical resonances, enabling applications in filtering, nonlinear optics, and molecular fingerprinting. It is highly desirable for these applications to incorporate such devices with multiple high-quality-factor resonances; however, it can be challenging to obtain more than a pair of narrow resonances in a single plasmonic surface. Here, we demonstrate a multiresonant metasurface that operates by extending the functionality of surface lattice resonances, which are the collective responses of arrays of metallic nanoparticles. This device features a series of resonances with high-quality factors ( Q ∼ 40), an order of magnitude larger than what is typically achievable with plasmonic nanoparticles, as well as a narrow free spectral range. This design methodology can be used to better tailor the transmission spectrum of resonant metasurfaces and represents an important step toward the miniaturization of optical devices.