Work

Cactus-like Metamaterial Structures for Electromagnetically Induced Transparency at THz frequencies

Year: 2024

Type: article

Abstract: THz metamaterials present unique opportunities for next-generation technologies and applications as they can fill the "THz gap" originating from the weak response of natural materials in this regime, providing a variety of novel or advanced electromagnetic wave control components and systems. Here, we propose a novel metamaterial design made of three-dimensional, metallic, "cactus-like" meta-atoms, showing electromagnetically induced transparency (EIT) and enhanced refractive index sensing performance at low THz frequencies. Following a detailed theoretical analysis, the structure is realized experimentally using multiphoton polymerization and electroless silver plating. The experimental characterization results obtained through THz time domain spectroscopy validate the corresponding numerical data, verifying the high potential of the proposed structure for slow light and sensing applications.

Source: ACS Photonics

DOI: 10.1021/acsphotonics.4c01179

Authors: Savvas Papamakarios, Odysseas Tsilipakos, Ioannis Katsantonis, Anastasios D. Koulouklidis, Maria Manousidaki, Gordon Zyla, Christina Daskalaki, Stelios Tzortzakis, Maria Kafesaki, Maria Farsari

Institutions: National and Kapodistrian University of Athens, FORTH Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, National Hellenic Research Foundation, University of Regensburg, University of Crete

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funders: Hellenic Academic Libraries Link, European Commission, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Stavros Niarchos Foundation, University of Crete, National and Kapodistrian University of Athens, Universität Regensburg, Hellenic Foundation for Research and Innovation, HORIZON EUROPE Framework Programme, H2020 Marie Skłodowska-Curie Actions, HORIZON EUROPE Marie Sklodowska-Curie Actions, HORIZON EUROPE Digital, Industry and Space

Awards: G1491100119, G2561990904, G2738419869, FABrication of 3D metasurfaces to enable the next generation of high efficiency optical products, Chiral Metamaterials for THz Polarisation Control, G4268345265, G4385601726, FABrication of 3D metasurfaces to enable the next generation of high efficiency optical products, G6204821321, Chiral Metamaterials for THz Polarisation Control

OpenAlex ID: W4403171986

FWCI: 1.542

Cites: 68

Cited by: 20

Related to: 10