Electric-field tuning of a planar terahertz metamaterial based on strained SrTiO3 layers
Abstract
Here, we demonstrate a metamaterial exhibiting a frequency-tunable response in the terahertz domain, controlled by a bias electric field. The active part of the metamaterial consists of a periodic metallic pattern deposited on a thin epitaxially strained strontium titanate film. The role of the metallic structure is two-fold: it gives rise to the metamaterial resonance and it enables applying an electric bias to the strontium titanate layer. The strained film exhibits a pronounced dependence of its permittivity on the bias, which exerts a strong influence on the resonance. Specifically, the resonance of our structure occurs near 0.5 THz and, upon applying a bias voltage of 55 V, a relative tunability of the resonance frequency of 19% was achieved at room temperature.
- Authors:
-
[1];
[1];
[1];
[2];
- Czech Academy of Sciences, Prague (Czech Republic)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1481152
- Report Number(s):
- LA-UR-18-29547
Journal ID: ISSN 0022-3727
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physics. D, Applied Physics
- Additional Journal Information:
- Journal Volume: 51; Journal Issue: 5; Journal ID: ISSN 0022-3727
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Material Science; tunable metamaterial; metasurfaces; strontium titanate; epitaxial thin films; terahertz waves
Citation Formats
Kadlec, Christelle, Skoromets, Volodymyr, Kadlec, Filip, Němec, Hynek, Chen, Hou -Tong, Jurka, Vlastimil, Hruška, Karel, and Kužel, Petr. Electric-field tuning of a planar terahertz metamaterial based on strained SrTiO3 layers. United States: N. p., 2018.
Web. doi:10.1088/1361-6463/aaa315.
Kadlec, Christelle, Skoromets, Volodymyr, Kadlec, Filip, Němec, Hynek, Chen, Hou -Tong, Jurka, Vlastimil, Hruška, Karel, & Kužel, Petr. Electric-field tuning of a planar terahertz metamaterial based on strained SrTiO3 layers. United States. https://doi.org/10.1088/1361-6463/aaa315
Kadlec, Christelle, Skoromets, Volodymyr, Kadlec, Filip, Němec, Hynek, Chen, Hou -Tong, Jurka, Vlastimil, Hruška, Karel, and Kužel, Petr. Thu .
"Electric-field tuning of a planar terahertz metamaterial based on strained SrTiO3 layers". United States. https://doi.org/10.1088/1361-6463/aaa315. https://www.osti.gov/servlets/purl/1481152.
@article{osti_1481152,
title = {Electric-field tuning of a planar terahertz metamaterial based on strained SrTiO3 layers},
author = {Kadlec, Christelle and Skoromets, Volodymyr and Kadlec, Filip and Němec, Hynek and Chen, Hou -Tong and Jurka, Vlastimil and Hruška, Karel and Kužel, Petr},
abstractNote = {Here, we demonstrate a metamaterial exhibiting a frequency-tunable response in the terahertz domain, controlled by a bias electric field. The active part of the metamaterial consists of a periodic metallic pattern deposited on a thin epitaxially strained strontium titanate film. The role of the metallic structure is two-fold: it gives rise to the metamaterial resonance and it enables applying an electric bias to the strontium titanate layer. The strained film exhibits a pronounced dependence of its permittivity on the bias, which exerts a strong influence on the resonance. Specifically, the resonance of our structure occurs near 0.5 THz and, upon applying a bias voltage of 55 V, a relative tunability of the resonance frequency of 19% was achieved at room temperature.},
doi = {10.1088/1361-6463/aaa315},
journal = {Journal of Physics. D, Applied Physics},
number = 5,
volume = 51,
place = {United States},
year = {Thu Jan 11 00:00:00 EST 2018},
month = {Thu Jan 11 00:00:00 EST 2018}
}
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Cited by: 6 works
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Figures / Tables:
Figure 1.: (a) Schematic view of the frequency-tunable THz metamaterial structure. Two SrTiO3 /DyScO3 epitaxial bilayers are deposited on a single-crystal (110) DyScO3 substrate, and the patterned metallic resonators on top of the heterostructure also serve as electrodes. (b) SEM image of the fabricated metamaterial structure. (c) Diagram of themore »
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Works referencing / citing this record:
Dynamic Terahertz Plasmonics Enabled by Phase‐Change Materials
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