Multi-resonant high-Q plasmonic metasurfaces
arXiv:1907.00458 · doi:10.1021/acs.nanolett.9b02638
Abstract
Resonant metasurfaces are devices composed of nanostructured sub-wavelength 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 multi-resonant 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 towards the miniaturization of optical devices.
arXiv comment8 pages, 4 figures, includes MATLAB code in Supplementary Materials
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Cited by in corpus (12)
- Ultra-high-Q resonances in plasmonic metasurfaces
- Post-2000 Nonlinear Optical Materials and Measurements: Data Tables and Best Practices
- Thermal Control of Plasmonic Surface Lattice Resonances
- Nanoparticle lattices with bases: Fourier modal method and dipole approximation
- Dynamic dielectric metasurfaces via control of surface lattice resonances in non-homogeneous environment
- Fourier modal method for Moiré lattices
- Cross-polarized surface lattice resonances in a rectangular lattice plasmonic metasurface
- Thickness-independent narrow resonance in a stack of two plasmonic lattices
- Resonant Critical Coupling of Surface Lattice Resonances with Fluorescent Absorptive Thin Film
- Modified Coupled-mode Theory for the Absorption in Plasmonic Lattices
- Transient perturbative nonlinear responses of plasmonic materials
- Hyperpolarizability of plasmonic meta-atoms in metasurfaces