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Open AccessArticle

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

1
Faculty of Physics, University of Warsaw, ul. Pasteura 5, 02-093 Warsaw, Poland
2
Centera Laboratories, Institute of High Pressure Physics, Polish Academy of Sciences, ul. Sokołowska 29/37, 01-142 Warsaw, Poland
3
Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, 02-668 Warsaw, Poland
4
International Research Centre MagTop, Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, 02-668 Warsaw, Poland
*
Author to whom correspondence should be addressed.
Materials 2020, 13(8), 1811; https://doi.org/10.3390/ma13081811
Received: 19 March 2020 / Revised: 2 April 2020 / Accepted: 6 April 2020 / Published: 11 April 2020
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. View Full-Text
Keywords: THz spectroscopy; metamaterials; polarization; magnetoplasmons THz spectroscopy; metamaterials; polarization; magnetoplasmons
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MDPI and ACS Style

Yavorskiy, D.; Szoła, M.; Karpierz, K.; Rudniewski, R.; Bożek, R.; Karczewski, G.; Wojtowicz, T.; Wróbel, J.; Łusakowski, J. Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells. Materials 2020, 13, 1811. https://doi.org/10.3390/ma13081811

AMA Style

Yavorskiy D, Szoła M, Karpierz K, Rudniewski R, Bożek R, Karczewski G, Wojtowicz T, Wróbel J, Łusakowski J. Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells. Materials. 2020; 13(8):1811. https://doi.org/10.3390/ma13081811

Chicago/Turabian Style

Yavorskiy, Dmitriy; Szoła, Maria; Karpierz, Krzysztof; Rudniewski, Rafał; Bożek, Rafał; Karczewski, Grzegorz; Wojtowicz, Tomasz; Wróbel, Jerzy; Łusakowski, Jerzy. 2020. "Polarization of Magnetoplasmons in Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells" Materials 13, no. 8: 1811. https://doi.org/10.3390/ma13081811

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