Articles producció científica> Química Física i Inorgànica

Extraordinarily Transparent Metaldielectrics for Infrared and Terahertz Applications

  • Identification data

    Identifier: imarina:9296645
    Authors:
    Xiao, XFTurino, MBecerril-Castro, IBMaier, SAAlvarez-Puebla, RAGiannini, V
    Abstract:
    Metamaterials are extremely important in advanced technologies, but usually, they rely on the resonant behavior of their constituent blocks. This strongly limits the application of metamaterials to particular frequency band ranges. However, metamaterials with broadband behaviors are highly desirable and are essential for many applications. Herein, recently discovered metamaterials that are composed of densely packed metallic nanoparticles but behave as effective dielectrics are explored. Such metamaterials are extremely transparent for all wavelengths within or exceeding the near infrared and their performance is constant across an ultra-broadband range of frequencies, which is vital to many devices that operate across the same frequency range. The ability to tune the refractive index of these metamaterials to unnaturally high values while maintaining transparency opens new avenues, such as creating flat, thin metalenses in the terahertz region where only bulk lenses are currently available. To highlight those features, several new possible infrared and terahertz applications of these metamaterials which push the boundary of existing technology in THz photonics are shown.
  • Others:

    Author, as appears in the article.: Xiao, XF; Turino, M; Becerril-Castro, IB; Maier, SA; Alvarez-Puebla, RA; Giannini, V
    Department: Química Física i Inorgànica
    URV's Author/s: Turino, Mariacristina
    Keywords: Transparent metals Thz photonics Nanophotonics Nanoparticles Metamaterials Homogenization Birefringence Anisotropy
    Abstract: Metamaterials are extremely important in advanced technologies, but usually, they rely on the resonant behavior of their constituent blocks. This strongly limits the application of metamaterials to particular frequency band ranges. However, metamaterials with broadband behaviors are highly desirable and are essential for many applications. Herein, recently discovered metamaterials that are composed of densely packed metallic nanoparticles but behave as effective dielectrics are explored. Such metamaterials are extremely transparent for all wavelengths within or exceeding the near infrared and their performance is constant across an ultra-broadband range of frequencies, which is vital to many devices that operate across the same frequency range. The ability to tune the refractive index of these metamaterials to unnaturally high values while maintaining transparency opens new avenues, such as creating flat, thin metalenses in the terahertz region where only bulk lenses are currently available. To highlight those features, several new possible infrared and terahertz applications of these metamaterials which push the boundary of existing technology in THz photonics are shown.
    Thematic Areas: Optics Materials science, multidisciplinary
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: mariacristina.turino@estudiants.urv.cat
    Author identifier: 0000-0003-3053-4970
    Record's date: 2024-09-07
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://onlinelibrary.wiley.com/doi/full/10.1002/adpr.202200190
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Advanced Photonics Research. 3 (10):
    APA: Xiao, XF; Turino, M; Becerril-Castro, IB; Maier, SA; Alvarez-Puebla, RA; Giannini, V (2022). Extraordinarily Transparent Metaldielectrics for Infrared and Terahertz Applications. Advanced Photonics Research, 3(10), -. DOI: 10.1002/adpr.202200190
    Article's DOI: 10.1002/adpr.202200190
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2022
    Publication Type: Journal Publications
  • Keywords:

    Materials Science, Multidisciplinary,Optics
    Transparent metals
    Thz photonics
    Nanophotonics
    Nanoparticles
    Metamaterials
    Homogenization
    Birefringence
    Anisotropy
    Optics
    Materials science, multidisciplinary
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