Search Results - "Grigelionis, I"

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  1. 1

    Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaN structures at 110 K temperature by Jakštas, V., Grigelionis, I., Janonis, V., Valušis, G., Kašalynas, I., Seniutinas, G., Juodkazis, S., Prystawko, P., Leszczyński, M.

    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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    Journal Article
  2. 2

    Magnetoplasmons in high electron mobility CdTe/CdMgTe quantum wells by Grigelionis, I., Nogajewski, K., Karczewski, G., Wojtowicz, T., Czapkiewicz, M., Wróbel, J., Boukari, H., Mariette, H., Łusakowski, J.

    “…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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    Journal Article
  3. 3

    Terahertz imaging using strained-Si MODFETs as sensors by Meziani, Y.M., Garcìa-Garcìa, E., Velázquez-Pérez, J.E., Coquillat, D., Dyakonova, N., Knap, W., Grigelionis, I., Fobelets, K.

    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. 4

    Flexible C-shaped metallic metasurface based optics for terahertz beam shaping by Ivaskeviciute-Povilauskiene, R., Cizas, V., Nacius, E., Grigelionis, I., Redeckas, K., Bernatonis, M., Orlov, S., Valusis, G., Minkevicius, L.

    “…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. 5

    Polarization selective dual frequency metasurface-based resonant thermal terahertz emitters on n-GaAs/GaAs by Cizas, V., Grigelionis, I., Ikamas, K., Jakstas, V., Skelaite, B., Jokubauskis, D., Biciunas, A., Urbanowicz, A., Treideris, M., Butkute, R., Minkevicius, L.

    “…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. 6

    Resonant thermal terahertz metasurface-based emitters on n-GaAs/GaAs by Cizas, V., Grigelionis, I., Ikamas, K., Jakstas, V., Jokubauskis, D., Biciunas, A., Urbanowicz, A., Treideris, M., Butkute, R., Minkevicius, L.

    “…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. 7

    Electrically-controlled THz emission from AlGaN/GaN/Al2O3 high electron mobility transistor structures at a temperature of 20 K by Grigelionis, I., Prystawko, P., Jorudas, J., Kasalynas, I.

    “…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. 8
  9. 9

    Radiation from shallow oxygen impurity in AlGaN/GaN HEMT structures in magnetic field by Grigelionis, I., Diakonova, N., Knap, W., Teppe, F., Prystawko, P., Kašalynas, I.

    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. 10

    Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaNstructures at 110 K temperature by Jakštas, V, Grigelionis, I, Janonis, V, Valušis, G, Kašalynas, I, Prystawko, P, Leszczyński, M

    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…”
    Get full text
    Journal Article
  11. 11

    Terahertz detection using Si-SiGe MODFETs by Meziani, Y. M., Velazquez-Perez, J. E., Garcia-Garcia, E., Coquillat, D., Dyakonova, N., Knap, W., Grigelionis, I., Fobelets, K.

    “…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
  12. 12

    Terahertz Imaging Using Strained-Si MODFETs as Sensors by Meziani, Y. M., Garcia-Garcia, E., Velazquez-Perez, J. E., Coquillat, D., Dyakonova, N., Knap, W., Grigelionis, I., Fobelets, K.

    “…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. 13

    Terahertz Response of a Point Contact Based on CdTe/CdMgTe Quantum Well in Magnetic Field by Grigelionis, I., Białek, M., Grynberg, M., Czapkiewicz, M., Kolkovskiy, V., Wiater, M., Wojciechowski, T., Wróbel, J., Wojtowicz, T., But, D., Knap, W., Łusakowski, J.

    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. 14
  15. 15

    Optimization of Terahertz Emission Spectra of Electrically Pumped 2DEG Plasmonic AlGaN/GaN Heterostructures by Grigelionis, I., Jakstas, V., Janonis, V., Kasalynas, I.

    “…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. 16
  17. 17

    Terahertz detectors based on a gated two-dimensional electron plasma in CdMnTe/CdMgTe quantum wells by Grigelionis, I., Grynberg, M., Adamus, Z., Karczewski, G., Wojtowicz, T., Lusakowski, J.

    “…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. 18

    The response rate of room temperature terahertz InGaAs-based bow-tie detector with broken symmetry by Kasalynas, I., Seliuta, D., Simniskis, R., Tamosiunas, V., Vaicikauskas, V., Grigelionis, I., Nedzinskas, R., Kohler, K., Valusis, G.

    “…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. 19

    Terahertz detection with delta-doped GaAs/AlAs multiple quantum wells by Seliuta, D, Cechavicius, B, Kavaliauskas, J, Krivaite, G, Grigelionis, I, Balakauskas, S, Valusis, G, Sherliker, B, Halsall, M. P, Lachab, M, Khanna, S. P, Harrison, P, Linfield, E. H

    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