R
Roman Sellin
Researcher at Technical University of Berlin
Publications - 81
Citations - 3103
Roman Sellin is an academic researcher from Technical University of Berlin. The author has contributed to research in topics: Quantum dot & Quantum dot laser. The author has an hindex of 26, co-authored 81 publications receiving 3017 citations. Previous affiliations of Roman Sellin include University of Cambridge & Humboldt University of Berlin.
Papers
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Journal ArticleDOI
Ultralong Dephasing Time in InGaAs Quantum Dots
Paola Borri,Wolfgang Werner Langbein,S. Schneider,Ulrike Woggon,Roman Sellin,D. Ouyang,Dieter Bimberg +6 more
TL;DR: Between 7 and 100 K the polarization decay has two distinct components resulting in a non-Lorentzian line shape with a lifetime-limited zero-phonon line and a broadband from elastic exciton-acoustic phonon interactions.
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Close-to-ideal device characteristics of high-power InGaAs/GaAs quantum dot lasers
TL;DR: In this article, a high-power InGaAs/GaAs quantum-dot laser is achieved by the application of an annealing and growth interruption step at 600°C after the deposition of the dots.
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Rabi oscillations in the excitonic ground-state transition of InGaAs quantum dots
Paola Borri,Wolfgang Werner Langbein,S. Schneider,Ulrike Woggon,Roman Sellin,D. Ouyang,Dieter Bimberg +6 more
TL;DR: In this article, measurements and calculations of optical Rabi oscillations in the excitonic ground-state transition of an InGaAs quantum dot ensemble at low temperature are presented.
Journal ArticleDOI
Repulsive exciton-exciton interaction in quantum dots
TL;DR: In this paper, the biexciton binding energy decreases with increasing transition energy changing its sign at about 1.24 eV, attributed to three-dimensional confinement, quenching correlation, and exchange and causing local charge separation.
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Complete suppression of filamentation and superior beam quality in quantum-dot lasers
Ch. Ribbat,Roman Sellin,I.N. Kaiander,F. Hopfer,N. N. Ledentsov,Dieter Bimberg,A. R. Kovsh,V. M. Ustinov,A. E. Zhukov,Mikhail V. Maximov +9 more
TL;DR: In this paper, the authors compared near field and beam quality measurements on narrow stripe quantum-dot and quantum-well (QW) laser with identical structure, both emitting at 1100 nm.