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Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells

Grating metamaterials were fabricated with electron beam lithography on CdTe/CdMgTe modulation doped structures with two non-interacting quantum wells. Two types of samples were studied: with etched gratings and with gratings formed by deposition of Au stripes. The polarization properties at THz fre...

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Autores principales: Yavorskiy, Dmitriy, Szoła, Maria, Karpierz, Krzysztof, Rudniewski, Rafał, Bożek, Rafał, Karczewski, Grzegorz, Wojtowicz, Tomasz, Wróbel, Jerzy, Łusakowski, Jerzy
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215284/
https://www.ncbi.nlm.nih.gov/pubmed/32290498
http://dx.doi.org/10.3390/ma13081811
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author Yavorskiy, Dmitriy
Szoła, Maria
Karpierz, Krzysztof
Rudniewski, Rafał
Bożek, Rafał
Karczewski, Grzegorz
Wojtowicz, Tomasz
Wróbel, Jerzy
Łusakowski, Jerzy
author_facet Yavorskiy, Dmitriy
Szoła, Maria
Karpierz, Krzysztof
Rudniewski, Rafał
Bożek, Rafał
Karczewski, Grzegorz
Wojtowicz, Tomasz
Wróbel, Jerzy
Łusakowski, Jerzy
author_sort Yavorskiy, Dmitriy
collection PubMed
description Grating metamaterials were fabricated with electron beam lithography on CdTe/CdMgTe modulation doped structures with two non-interacting quantum wells. Two types of samples were studied: with etched gratings and with gratings formed by deposition of Au stripes. The polarization properties at THz frequencies of the gratings were determined at room temperature. It was shown that Au gratings formed a linear polarizer, while etched gratings did not polarize THz radiation. Transmission of circularly polarized THz radiation at low temperatures through a sample with no grating showed a strongly circularly polarized cyclotron resonance transition. Transmission of this radiation through a sample with an etched grating showed a magnetoplasmon transition that was almost perfectly linearly polarized. We concluded that magnetoplasmons in metamaterials with etched gratings are linearly polarized excitations, possibly with a small contribution of a circular component. This work opens the possibility of the detailed study of the polarization of magnetoplasmons, which has not been explored in the past.
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spelling pubmed-72152842020-05-18 Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells Yavorskiy, Dmitriy Szoła, Maria Karpierz, Krzysztof Rudniewski, Rafał Bożek, Rafał Karczewski, Grzegorz Wojtowicz, Tomasz Wróbel, Jerzy Łusakowski, Jerzy Materials (Basel) Article Grating metamaterials were fabricated with electron beam lithography on CdTe/CdMgTe modulation doped structures with two non-interacting quantum wells. Two types of samples were studied: with etched gratings and with gratings formed by deposition of Au stripes. The polarization properties at THz frequencies of the gratings were determined at room temperature. It was shown that Au gratings formed a linear polarizer, while etched gratings did not polarize THz radiation. Transmission of circularly polarized THz radiation at low temperatures through a sample with no grating showed a strongly circularly polarized cyclotron resonance transition. Transmission of this radiation through a sample with an etched grating showed a magnetoplasmon transition that was almost perfectly linearly polarized. We concluded that magnetoplasmons in metamaterials with etched gratings are linearly polarized excitations, possibly with a small contribution of a circular component. This work opens the possibility of the detailed study of the polarization of magnetoplasmons, which has not been explored in the past. MDPI 2020-04-11 /pmc/articles/PMC7215284/ /pubmed/32290498 http://dx.doi.org/10.3390/ma13081811 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yavorskiy, Dmitriy
Szoła, Maria
Karpierz, Krzysztof
Rudniewski, Rafał
Bożek, Rafał
Karczewski, Grzegorz
Wojtowicz, Tomasz
Wróbel, Jerzy
Łusakowski, Jerzy
Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells
title Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells
title_full Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells
title_fullStr Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells
title_full_unstemmed Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells
title_short Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells
title_sort polarization of magnetoplasmons in grating metamaterials based on cdte/cdmgte quantum wells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215284/
https://www.ncbi.nlm.nih.gov/pubmed/32290498
http://dx.doi.org/10.3390/ma13081811
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