Zobrazeno 1 - 10
of 1 285
pro vyhledávání: '"Alfred Forchel"'
Autor:
Markus Rau, Tobias Heindel, Sebastian Unsleber, Tristan Braun, Julian Fischer, Stefan Frick, Sebastian Nauerth, Christian Schneider, Gwenaelle Vest, Stephan Reitzenstein, Martin Kamp, Alfred Forchel, Sven Höfling, Harald Weinfurter
Publikováno v:
New Journal of Physics, Vol 16, Iss 4, p 043003 (2014)
Highly efficient single-photon sources (SPS) can increase the secure key rate of quantum key distribution (QKD) systems compared to conventional attenuated laser systems. Here we report on a free space QKD test using an electrically driven quantum do
Externí odkaz:
https://doaj.org/article/74cd75ebfcc74f8286a08c2f8ddc82bf
Autor:
Jean-Sebastian Tempel, Franziska Veit, Marc Aßmann, Lars Erik Kreilkamp, Sven Höfling, Martin Kamp, Alfred Forchel, Manfred Bayer
Publikováno v:
New Journal of Physics, Vol 14, Iss 8, p 083014 (2012)
The second-order correlation function g ^(2) ( τ = 0), input–output curves and pulse duration of the emission from a microcavity exciton–polariton system subsequent to picosecond-pulsed excitation are measured for different temperatures. At low
Externí odkaz:
https://doaj.org/article/7bc551933cd445f29801de03242a372f
Autor:
Alfred Forchel, A. V. Chernenko, Julian Fischer, M. Amthor, A. Rahimi-lman, S. Hoefling, Christian Schneider, Stephan Reitzenstein
Publikováno v:
Semiconductors. 50:1609-1613
In planar GaAs microcavities in a magnetic field up to 5 T perpendicular to the structure growth plane, under conditions of resonant pulsed pumping to a point close to the inflection point of the lower dispersion curve, Zeeman splitting of the spin s
Autor:
Markus-Christian Amann, Martin Bichler, Andreas Rosenauer, Gerhard Abstreiter, Dagmar Gerthsen, R. Krebs, Roman Sellin, Alfred Forchel, Dieter Bimberg, M. Grau, J.P. Reithmaier, Marco Schowalter, M. Arzberger, M Melzer
Publikováno v:
Microscopy of Semiconducting Materials 2003 ISBN: 9781351074636
Microscopy of Semiconducting Materials 2003
Microscopy of Semiconducting Materials 2003
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34ddaca3119dc01f72282de4adefe71e
https://doi.org/10.1201/9781351074636-29
https://doi.org/10.1201/9781351074636-29
Autor:
Sven Höfling, C. Schneider, Martin Kamp, V. V. Belykh, Nikolai N. Sibeldin, Alfred Forchel, D. A. Mylnikov, V. D. Kulakovskii
Publikováno v:
JETP Letters. 101:513-518
The dynamics of spatial coherence and momentum distribution of polaritons in the regime of Bose-Einstein condensation are investigated in a GaAs microcavity with embedded quantum wells under nonresonant excitation with picosecond laser pulses. It is
Autor:
Tim Byrnes, Tomoyuki Horikiri, Yutaka Shikano, Yasuhiro Matsuo, Sven Höfling, Kenichiro Kusudo, Andreas Löffler, Natsuko Ishida, Yoshihisa Yamamoto, Alfred Forchel
Exciton-polaritons are a coherent electron-hole-photon (e-h-p) system where condensation has been observed in semiconductor microcavities. In contrast to equilibrium Bose-Einstein condensation (BEC) for long lifetime systems, polariton condensates ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed79214d9a710623f32c5a4cacf2541f
Autor:
Andre Somers, A. Maryński, Grzegorz Sęk, J. Andrzejewski, Jan Misiewicz, Anna Musiał, Paweł Mrowiński, Alfred Forchel, Sven Höfling
Publikováno v:
Solid State Phenomena. 213:3-11
There are presented optical properties of strongly in-plane elongated nanostructures the so called quantum dashes made in InAs/InP material system by molecular beam epitaxy. They have been investigated systematically by a spectroscopic manner on both
Autor:
Tomoyuki Horikiri, Makoto Yamaguchi, Kenji Kamide, Yasuhiro Matsuo, Tim Byrnes, Natsuko Ishida, Andreas Löffler, Sven Höfling, Yutaka Shikano, Tetsuo Ogawa, Alfred Forchel, Yoshihisa Yamamoto
Publikováno v:
Scientific Reports
In a standard semiconductor laser, electrons and holes recombine via stimulated emission to emit coherent light, in a process that is far from thermal equilibrium. Exciton-polariton condensates-sharing the same basic device structure as a semiconduct
Autor:
Christian Schneider, Arash Rahimi-Iman, Na Young Kim, Julian Fischer, Ivan G. Savenko, Matthias Amthor, Matthias Lermer, Adriana Wolf, Lukas Worschech, Vladimir D. Kulakovskii, Ivan A. Shelykh, Martin Kamp, Stephan Reitzenstein, Alfred Forchel, Yoshihisa Yamamoto, Sven Höfling
Publikováno v:
Nature. 497:348-352
Conventional semiconductor laser emission relies on stimulated emission of photons1, 2, which sets stringent requirements on the minimum amount of energy necessary for its operation3, 4. In comparison, exciton–polaritons in strongly coupled quantum