Search Results - "Grigelionis, I"
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Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaN structures at 110 K temperature
Published in Applied physics letters (15-05-2017)“…We experimentally observed a terahertz (THz) radiation of electrically driven 2D electron gas (2DEG) plasmons in AlGaN/AlN/GaN structures at T = 110 K. The…”
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2
Magnetoplasmons in high electron mobility CdTe/CdMgTe quantum wells
Published in Physical review. B, Condensed matter and materials physics (24-02-2015)“…Terahertz magnetospectroscopy experiments on high quality CdTe/CdMgTe quantum wells were carried out at low temperatures and high magnetic fields. Samples of…”
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3
Terahertz imaging using strained-Si MODFETs as sensors
Published in Solid-state electronics (01-05-2013)“…► Non-resonant detection of THz radiation using s-Si MODFETs at room temperature. ► Terahertz imaging by using strained-silicon MODFETs as sensors. ► Low…”
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Journal Article Conference Proceeding -
4
Flexible C-shaped metallic metasurface based optics for terahertz beam shaping
Published in 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (17-09-2023)“…This study explores the use of passive and flexible optics elements to achieve THz beam profile engineering for imaging applications via mechanical bending…”
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Conference Proceeding -
5
Polarization selective dual frequency metasurface-based resonant thermal terahertz emitters on n-GaAs/GaAs
Published in 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (17-09-2023)“…Thermal metamaterial-based emitters on GaAs with rectangular metacell shape allowing for resonant polarization selective dual frequency emission in THz range…”
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Conference Proceeding -
6
Resonant thermal terahertz metasurface-based emitters on n-GaAs/GaAs
Published in 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) (28-08-2022)“…Thermal metamaterial GaAs-based emitters operating in THz range were developed and investigated. Structures of desired parameters were simulated using 3D…”
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Conference Proceeding -
7
Electrically-controlled THz emission from AlGaN/GaN/Al2O3 high electron mobility transistor structures at a temperature of 20 K
Published in 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (01-09-2019)“…We investigated radiative phenomena contributing to the THz emission of AlGaN/GaN high electron mobility transistor (HEMT) structures grown on sapphire…”
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Conference Proceeding -
8
Investigation of two-dimensional plasmons in grating-gated AlGaN/GaN heterostructures with terahertz time domain spectrometer
Published in 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (08-11-2020)“…Two-dimensional (2D) plasmons in grating-gated AlGaN/GaN heterostructures were investigated by terahertz time domain spectroscopy observing the distinctive…”
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Conference Proceeding -
9
Radiation from shallow oxygen impurity in AlGaN/GaN HEMT structures in magnetic field
Published in Solid state communications (01-10-2020)“…The electrically excited impurity emission from AlGaN/GaN high electron mobility transistor (HEMT) structures in external magnetic field varying from 1.2 T to…”
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Journal Article -
10
Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaNstructures at 110 K temperature
Published in Applied physics letters (15-05-2017)“…We experimentally observed a terahertz (THz) radiation of electrically driven 2D electron gas(2DEG)plasmons inAlGaN/AlN/GaN structures at T = 110 K. The…”
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Journal Article -
11
Terahertz detection using Si-SiGe MODFETs
Published in 2013 Spanish Conference on Electron Devices (01-01-2013)“…We report on resonant and non-resonant (broad-band) detection of terahertz (THz) radiation using Strained-Si MODFETs. The devices were excited at room…”
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Conference Proceeding Journal Article -
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Terahertz Imaging Using Strained-Si MODFETs as Sensors
Published in 2012 International Silicon-Germanium Technology and Device Meeting (ISTDM) (01-06-2012)“…Development of new terahertz (THz) sensors is increasing in interest due to their potential for THz imaging and spectroscopy. One alternative to develop direct…”
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Conference Proceeding -
13
Terahertz Response of a Point Contact Based on CdTe/CdMgTe Quantum Well in Magnetic Field
Published in Acta physica Polonica, A (01-12-2012)“…A photoresponse at THz frequencies of a quantum point contact fabricated on a CdTe/CdMgTe quantum well was studied at low temperatures as a function of…”
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Journal Article -
14
Mobility of Holes in Nanometer Ge-on-Si p-Type Metal-Oxide-Semiconductor Field-Effect Transistors at Low Temperatures
Published in Acta physica Polonica, A (01-11-2011)Get full text
Journal Article -
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Optimization of Terahertz Emission Spectra of Electrically Pumped 2DEG Plasmonic AlGaN/GaN Heterostructures
Published in 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (01-09-2018)“…In this work the radiative processes which deteriorate the performance of electrically pumped 2DEG plasmonic AIGaN/ GaN heterostructures are identified and…”
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Conference Proceeding -
16
Terahertz Detection with δ-Doped GaAs/AlAs Multiple Quantum Wells
Published in Acta physica Polonica, A (01-03-2008)Get full text
Journal Article -
17
Terahertz detectors based on a gated two-dimensional electron plasma in CdMnTe/CdMgTe quantum wells
Published in 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (01-09-2014)“…Fabrication of compact detectors and emitters is essential for development of THz technology. Field-effect transistors (FETs) are promising current- and…”
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Conference Proceeding -
18
The response rate of room temperature terahertz InGaAs-based bow-tie detector with broken symmetry
Published in 2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves (01-09-2008)“…A bow-tie InGaAs with broken symmetry has been designed for terahertz detection at room temperature. An active part of the detector consists of a…”
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Conference Proceeding -
19
Terahertz detection with delta-doped GaAs/AlAs multiple quantum wells
Published 03-11-2007“…The authors demonstrate selective detection of terahertz radiation employing beryllium delta-doped GaAs/AlAs multiple quantum wells. The sensitivity up to 1…”
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Journal Article