Zobrazeno 1 - 10
of 499
pro vyhledávání: '"Łusakowski, J"'
Autor:
Yavorskiy, D., Ivonyak, Y., But, D., Karpierz, K., Krajewska, A., Haras, M., Sai, P., Dub, M., Kazakov, A., Cywiński, G., Knap, W., Łusakowski, J.
HgCdTe alloys are unique because by increasing the Cd content x, one modifies the band structure from inverted to normal, which fundamentally modifies the dispersion of bulk and surface or edge (in the case of quantum wells) energy states. Using allo
Externí odkaz:
http://arxiv.org/abs/2406.16122
Autor:
Sai, P., Potashin, S. O., Szola, M., Yavorskiy, D., Cywinski, G., Prystawko, P., Lusakowski, J., Ganichev, S. D., Rumyantsev, S., Knap, W., Kachorovskii, V. Yu.
Publikováno v:
Phys. Rev. B 104, 045301 (2021)
We report on the study of the magnetic ratchet effect in AlGaN/GaN heterostructures superimposed with lateral superlattice formed by dual-grating gate structure. We demonstrate that irradiation of the superlattice with terahertz beam results in the d
Externí odkaz:
http://arxiv.org/abs/2102.12791
Autor:
Yavorskiy, D, Ivonyak, Y, But, D, Karpierz, K, Krajewska, A, Haras, M, Sai, P, Dub, M, Kazakov, A, Cywiński, G, Knap, W, Łusakowski, J
Publikováno v:
Journal of Physics D: Applied Physics; 1/13/2025, Vol. 58 Issue 2, p1-8, 8p
Akademický článek
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Terahertz spectroscopy experiments at magnetic fields and low temperatures were carried out on samples of different gate shapes processed on a high electron mobility GaAs/AlGaAs heterostructure. For a given radiation frequency, multiple magnetoplasmo
Externí odkaz:
http://arxiv.org/abs/1412.1371
Autor:
Pietka, B., Zygmunt, D., Krol, M., Szczytko, J., Lusakowski, J., Molas, M. R., Nicolet, A. A. L., Stepnicki, P., Zieba, P., Tralle, I., Morier-Genoud, F., Matuszewski, M., Potemski, M., Deveaud, B.
We detail the influence of a magnetic field on exciton-polaritons inside a semiconductor microcavity. Magnetic field can be used as a tuning parameter for exciton and photon resonances. We discuss the change of the exciton energy, the oscillator stre
Externí odkaz:
http://arxiv.org/abs/1411.7875
Autor:
Białek, M., Witowski, A. M., Orlita, M., Potemski, M., Czapkiewicz, M., Wróbel, J., Umansky, V., Grynberg, M., Łusakowski, J.
In order to characterize magnetic-field (B) tunable THz plasmonic detectors, spectroscopy experiments were carried out at liquid helium temperatures and high magnetic fields on devices fabricated on a high electron mobility GaAs/AlGaAs heterostructur
Externí odkaz:
http://arxiv.org/abs/1404.2504
Autor:
Knap, W., Dyakonov, M., Coquillat, D., Teppe, F., Dyakonova, N., Łusakowski, J., Karpierz, K., Sakowicz, M., Valusis, G., Seliuta, D., Kasalynas, I., Fatimy, A. El, Meziani, Y., Otsuji, T.
Resonant frequencies of the two-dimensional plasma in FETs increase with the reduction of the channel dimensions and can reach the THz range for sub-micron gate lengths. Nonlinear properties of the electron plasma in the transistor channel can be use
Externí odkaz:
http://arxiv.org/abs/0907.2523
Autor:
Boubanga-Tombet, S., Sakowicz, M., Coquillat, D., Teppe, F., Knap, W., Dyakonov, M. I., Karpierz, K., Lusakowski, J., Grynberg, M.
We report on terahertz radiation detection with InGaAs/InAlAs Field Effect Transistors in quantizing magnetic field. The photovoltaic detection signal is investigated at 4.2 K as a function of the gate voltage and magnetic field. Oscillations analogo
Externí odkaz:
http://arxiv.org/abs/0904.2081
Photoluminescence measurements were carried out on Be $\delta$-doped GaAs/Al$_{0.33}$Ga$_{0.67}$As heterostructure at 1.6 K in magnetic fields ($B$) up to 5 T. Luminescence originating from recombination of a two-dimensional electron gas (2DEG) and p
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703088