Zobrazeno 1 - 10
of 424
pro vyhledávání: '"Z R Wasilewski"'
Autor:
M Flöser, B A Piot, C L Campbell, D K Maude, M Henini, R Airey, Z R Wasilewski, S Florens, T Champel
Publikováno v:
New Journal of Physics, Vol 15, Iss 8, p 083027 (2013)
We have performed magnetotransport experiments in the high-temperature regime (up to 50 K) of the integer quantum Hall effect for two-dimensional electron gases in semiconducting heterostructures. While the magnetic field dependence of the classical
Externí odkaz:
https://doaj.org/article/7ff11889be2c449593f58ee90128b24c
Autor:
P. Goulain, C. Deimert, M. Jeannin, A. Bousseksou, W.J. Pasek, Z. R. Wasilewski, R. Colombelli, J.-M. Manceau
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
Autor:
E. Annelise Bergeron, F. Sfigakis, Y. Shi, George Nichols, P. C. Klipstein, A. Elbaroudy, Sean M. Walker, Z. R. Wasilewski, J. Baugh
We report on transport characteristics of field effect two-dimensional electron gases (2DEG) in surface indium antimonide quantum wells. The topmost 5 nm of the 30 nm wide quantum well is doped and shown to promote the formation of reliable, low resi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3530f21cd9e88cdd314f0cf8918b0ca5
Publikováno v:
Optoelectronic Devices and Integration X.
Terahertz quantum cascade lasers (THz QCLs) in metal-metal (MM) ridge waveguides have been fabricated and hetero bonded on aluminum nitride (AlN) substrate as heat sink submount. Compared with the conventional structure of THz QCLs in MM waveguides o
Publikováno v:
Journal of Crystal Growth. 513:15-19
Comprehensive studies on the surface morphological evolution of AlInSb metamorphic buffers and InSb QWs grown on top were conducted as a function of the GaAs (0 0 1) substrate offcut angles. We confirmed our earlier postulation that the vicinal surfa
Autor:
Chris Deimert, Z. R. Wasilewski
Publikováno v:
Journal of Crystal Growth. 514:103-108
Parabolic quantum wells have unique properties that make them attractive for certain applications. However, growing them with molecular beam epitaxy is much more difficult than growing standard rectangular wells, as parabolic wells require a smooth,
Autor:
Frank Hohls, Man Chun Tam, S. R. Harrigan, HoSung Kim, Brandon Buonacorsi, Jonathan Baugh, Arjun Shetty, Michael E. Reimer, Francois Sfigakis, Z. R. Wasilewski
We have realized quantized charge pumping using non-adiabatic single-electron pumps in dopant-free GaAs two-dimensional electron gases (2DEGs). The dopant-free III-V platform allows for ambipolar devices, such as p-i-n junctions, that could be combin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5840e4e0bba016a6eef828ee185c0edb
http://arxiv.org/abs/2102.13320
http://arxiv.org/abs/2102.13320
Autor:
Maciej Sakowicz, Piotr Prokaryn, Mariusz Płuska, Z. R. Wasilewski, Anna Szerling, Michał Szymański, Kamil Kosiel
Publikováno v:
Terahertz (THz), Mid Infrared (MIR) and Near Infrared (NIR) Technologies for Protection of Critical Infrastructures Against Explosives and CBRN ISBN: 9789402420814
The paper presents the studies on technology of ~100 μm-emitting (~3 THz) Al0.15Ga0.85As/GaAs QCLs, the optimized scheme of fabrication of such lasers was elaborated. It was a result of the extensive work on decreasing waveguide losses while ensurin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4c76a0ea9d32c8623235beadeb1bcad
https://doi.org/10.1007/978-94-024-2082-1_4
https://doi.org/10.1007/978-94-024-2082-1_4
Publikováno v:
Optics express. 28(18)
This work presents a six-level scheme terahertz (THz) quantum cascade laser (QCL) design in which the resonant-phonon (RP) and the scattering-assisted (SA) injection/extraction are combined within a single Al0.15Ga0.85As/GaAs based structure. By util
Autor:
Marziyeh Zamiri, Christopher E. Valdivia, HoSung Kim, Matthew M. Wilkins, Man Chun Tam, Jacob J. Krich, Kayden L. C. Kaller, Daixi Xia, Karin Hinzer, Z. R. Wasilewski, Meghan N. Beattie
Publikováno v:
2020 47th IEEE Photovoltaic Specialists Conference (PVSC).
We present a two-junction photonic power converter operating under monochromatic illumination in the telecommunications O-band. The design, which is a direct extension of multi-junction solar cell technology, incorporates InAlGaAs absorbing layers la