Terahertz metamaterials for light-driven magnetism

Abstract: We describe the design of two types of metamaterials aimed at enhancing terahertz field pulses that can be used to control the magnetic state in condensed matter systems. The first structure is a so-called “dragonfly” antenna, able to realize a five-fold enhancement of the impinging terahertz magnetic field, while preserving its broadband features. For currently available state-of-the-art table top sources, this leads to peak magnetic fields exceeding 1 T. The second structure is an octopole antenna aimed at enhancing a circularly-polarized terahertz electric field, while preserving its polarization state. We obtain a five-fold enhancement of the electric field, hence expected to exceed the 1 MV/cm peak amplitude. Both our structures can be readily fabricated on top of virtually any material.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Terahertz metamaterials for light-driven magnetism ; volume:13 ; number:10 ; year:2024 ; pages:1891-1898 ; extent:8 ; Nanophotonics ; 13, Heft 10 (2024), 1891-1898 (gesamt 8)

Contributors, Places and Time

• Creator: Pancaldi, Matteo ; Vavassori, Paolo ; Bonetti, Stefano

Further information

• DOI: 10.1515/nanoph-2023-0801
• URN: urn:nbn:de:101:1-2404271542495.408345731907
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 11:03 AM CEST