Next Article in Journal
Application of the Terrestrial Laser Scanning in Slope Deformation Monitoring: Taking a Highway Slope as an Example
Next Article in Special Issue
Titanium-Based Microbolometers: Control of Spatial Profile of Terahertz Emission in Weak Power Sources
Previous Article in Journal
Conceptual Planning of Micro-Assembly for a Better Utilization of Reconfigurable Manufacturing Systems
Previous Article in Special Issue
Terahertz Spectroscopy of Thermal Radiation from AlGaN/GaN Heterostructure on Sapphire at Low Temperatures
Open AccessArticle

Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells as Terahertz Detectors for High Magnetic Field Applications

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.
Appl. Sci. 2020, 10(8), 2807; https://doi.org/10.3390/app10082807
Received: 11 March 2020 / Revised: 7 April 2020 / Accepted: 14 April 2020 / Published: 18 April 2020
(This article belongs to the Special Issue THz Spectroscopy: Basic Science and Application)
The cyclotron and magnetoplasmon resonances were studied at 2 K in grating metamaterials fabricated on wafers with one or two modulation doped CdTe/CdMgTe quantum wells. The gratings (with the period varied between 2 μ m and 8 μ m) were prepared with an electron beam lithography either by etching or by evaporation of Au. The gratings were studied with an atomic force microscope which revealed a correlation between the depth and width of etched grooves at a constant time of etching. The sharpest resonances observed are due to excitation of magnetoplasmon in the case of Au gratings on a wafer with one quantum well. Etched samples with two quantum wells showed the strongest tuneability of magnetoplasmon resonances with the period of the grating and illumination with white light. We showed that the samples studied can be used as resonant or quasi-resonant terahertz detectors tuneable with magnetic field and white light. View Full-Text
Keywords: THz spectroscopy; metamaterials; magnetoplasmons; CdTe/CdMgTe quantum wells THz spectroscopy; metamaterials; magnetoplasmons; CdTe/CdMgTe quantum wells
Show Figures

Figure 1

MDPI and ACS Style

Yavorskiy, D.; Szoła, M.; Karpierz, K.; Bożek, R.; Rudniewski, R.; Karczewski, G.; Wojtowicz, T.; Wróbel, J.; Łusakowski, J. Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells as Terahertz Detectors for High Magnetic Field Applications. Appl. Sci. 2020, 10, 2807. https://doi.org/10.3390/app10082807

AMA Style

Yavorskiy D, Szoła M, Karpierz K, Bożek R, Rudniewski R, Karczewski G, Wojtowicz T, Wróbel J, Łusakowski J. Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells as Terahertz Detectors for High Magnetic Field Applications. Applied Sciences. 2020; 10(8):2807. https://doi.org/10.3390/app10082807

Chicago/Turabian Style

Yavorskiy, Dmitriy; Szoła, Maria; Karpierz, Krzysztof; Bożek, Rafał; Rudniewski, Rafał; Karczewski, Grzegorz; Wojtowicz, Tomasz; Wróbel, Jerzy; Łusakowski, Jerzy. 2020. "Grating Metamaterials Based on CdTe/CdMgTe Quantum Wells as Terahertz Detectors for High Magnetic Field Applications" Appl. Sci. 10, no. 8: 2807. https://doi.org/10.3390/app10082807

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop