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A. O. Kosogov
Researcher at Max Planck Society
Publications - 28
Citations - 1893
A. O. Kosogov is an academic researcher from Max Planck Society. The author has contributed to research in topics: Quantum dot & Quantum dot laser. The author has an hindex of 17, co-authored 28 publications receiving 1877 citations. Previous affiliations of A. O. Kosogov include Technical University of Berlin.
Papers
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Journal ArticleDOI
Direct formation of vertically coupled quantum dots in Stranski-Krastanow growth.
N. N. Ledentsov,Vitaly Shchukin,Marius Grundmann,N. Kirstaedter,J. Böhrer,Oliver G. Schmidt,Dieter Bimberg,Victor M. Ustinov,A. Yu. Egorov,A. E. Zhukov,P. S. Kop’ev,Sergey V. Zaitsev,N. Yu. Gordeev,Zh. I. Alferov,A. I. Borovkov,A. O. Kosogov,S. S. Ruvimov,Peter Werner,Ulrich Gösele,J. Heydenreich +19 more
TL;DR: In this paper, a laterally ordered array of nanoscale structures inserted in a GaAs matrix, where each structure is composed of several vertically merging InAs parts, was found to decrease the radiative lifetime and to result in low energy shifts of the corresponding peaks in luminescence and absorption spectra.
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Room-temperature continuous-wave lasing from stacked InAs/GaAs quantum dots grown by metalorganic chemical vapor deposition
Frank Heinrichsdorff,Ming-Hua Mao,N. Kirstaedter,Alois Krost,Dieter Bimberg,A. O. Kosogov,Peter Werner +6 more
TL;DR: In this article, a quantum dot (QD) laser made of stacked InAs dots grown by metalorganic chemical vapor deposition (MVD) is reported. But the growth of defect-free binary InAs/GaAs QDs with high lateral density (dl⩾4×1010 cm−2) was achieved in a narrow growth parameter window.
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Ordered arrays of quantum dots: Formation, electronic spectra, relaxation phenomena, lasing
Nikolai N. Ledentsov,Marius Grundmann,N. Kirstaedter,Oliver G. Schmidt,R. Heitz,J. Böhrer,Dieter Bimberg,Victor M. Ustinov,Vitaly Shchukin,A. Yu. Egorov,A. E. Zhukov,Sergey V. Zaitsev,P. S. Kop’ev,Zh. I. Alferov,S. S. Ruvimov,A. O. Kosogov,Peter Werner,Ulrich Gösele,J. Heydenreich +18 more
TL;DR: In this paper, a self-organization of vertically-coupled quantum dots (VECODs) arranged in a well ordered artificial three-dimensional tefragonal lattice is described.
Journal ArticleDOI
Structural and optical properties of InAs–GaAs quantum dots subjected to high temperature annealing
A. O. Kosogov,Peter Werner,Ulrich Gösele,Nikolai N. Ledentsov,Dieter Bimberg,Victor M. Ustinov,A. Yu. Egorov,A. E. Zhukov,P. S. Kop’ev,N. A. Bert,Zh. I. Alferov +10 more
TL;DR: In this article, annealing at higher temperature (700°C) of structures with two-dimensional and three-dimensional arrays in InAs-GaAs quantum dots (QDs) results in an increase in the size and in a corresponding decrease in the indium composition of the QDs.
Journal ArticleDOI
Self‐organization processes of InGaAs/GaAs quantum dots grown by metalorganic chemical vapor deposition
TL;DR: In this paper, the Stranski-Krastanow growth mode was used to grow In0.5Ga 0.5As/GaAs (001) quantum dot (QDs) on exactly (1) oriented substrate.