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Andreas Löffler
Researcher at University of Würzburg
Publications - 104
Citations - 5881
Andreas Löffler is an academic researcher from University of Würzburg. The author has contributed to research in topics: Quantum dot & Photon. The author has an hindex of 27, co-authored 104 publications receiving 5508 citations. Previous affiliations of Andreas Löffler include Osram Opto Semiconductors GmbH.
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Journal ArticleDOI
Coherent electron-hole-photon coupling in high density exciton-polariton condensates
Tomoyuki Horikiri,Makoto Yamaguchi,Kenji Kamide,Yasuhiro Matsuo,Tim Byrnes,Natsuko Ishida,Andreas Löffler,Sven Höfling,Yutaka Shikano,Tetsuo Ogawa,Alfred Forchel,Yoshihisa Yamamoto +11 more
TL;DR: In this article, a photoluminescence sideband at high densities that cannot be accounted for by conventional semiconductor lasing was observed, which was interpreted as a persistent coherent electron-hole-photon coupling.
Journal ArticleDOI
Exciton kinetics and few particle effects in self-assembled GaAs-based quantum dashes
G. Sęk,Anna Musiał,P. Podemski,Marcin Syperek,Jan Misiewicz,Andreas Löffler,Sven Höfling,L. Worschech,Alfred Forchel +8 more
TL;DR: In this paper, the emission properties of single molecular-beam-epitaxially grown InGaAs/GaAs quantum dashes were investigated and it was revealed that a decreased exciton to biexciton radiative lifetimes ratio was a fingerprint of a weak carrier confinement.
Journal ArticleDOI
Emission characteristics of a highly correlated system of a quantum dot coupled to two distinct micropillar cavity modes
S. Weiler,Ata Ulhaq,S. M. Ulrich,Stephan Reitzenstein,Andreas Löffler,Alfred Forchel,Peter Michler +6 more
TL;DR: In this article, the emission characteristics of a system of one quantum dot (QD) nonresonantly coupled to two distinct detuned modes of a surrounding microcavity have been investigated, revealing strong interconnection in terms of photon anti-correlation in QD-mode and mode-mode cross correlations.
Proceedings ArticleDOI
Electrically driven high-Q quantum dot-micropillar cavities
Stephan Reitzenstein,C. Böckler,C. Kistner,R. Debusmann,Andreas Löffler,Julien Claudon,Laurent Grenouillet,Sven Höfling,Jean-Michel Gérard,Alfred Forchel +9 more
TL;DR: In this paper, the authors report on high quality electrically driven quantum dot micropillar cavities with Q-factors up to 16.000, which allow the observation of pronounced single dot resonance effects with a Purcell enhancement of about 10.
Journal ArticleDOI
Strong and weak coupling of single quantum dot excitons in pillar microcavities
Stephan Reitzenstein,C. Hofmann,Andreas Löffler,Alexander Kubanek,Johann Peter Reithmaier,Johann Peter Reithmaier,Martin Kamp,V. D. Kulakovskii,Leonid Veniaminovich Keldysh,T. L. Reinecke,Alfred Forchel +10 more
TL;DR: In this article, strong and weak coupling of self assembled quantum dots in high-Q semiconductor micropillar cavities grown by molecular beam epitaxy was investigated. But, the individual coupling behavior is described in terms of a different spatial position of the QDs relative to the field maximum of the cavity mode.