Papamakarios, Savvas and Tsilipakos, Odysseas and Katsantonis, Ioannis and Koulouklidis, Anastasios D. and Manousidaki, Maria and Zyla, Gordon and Daskalaki, Christina and Tzortzakis, Stelios and Kafesaki, Maria and Farsari, Maria (2024) Cactus-like Metamaterial Structures for Electromagnetically Induced Transparency at THz frequencies. ACS PHOTONICS, 12 (1). pp. 87-97. ISSN 2330-4022,
Full text not available from this repository. (Request a copy)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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PLANAR METAMATERIAL; TERAHERTZ; SPECTROSCOPY; ANALOG; DESIGN; 3D metamaterials; electromagnetically induced transparency; direct laser writing; THz sources; broken symmetry; quasi-dark resonances |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Regensburg Center for UltrafastNanoscopy (RUN) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Oct 2025 05:52 |
| Last Modified: | 14 Oct 2025 05:52 |
| URI: | https://pred.uni-regensburg.de/id/eprint/64507 |
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