T
Tomasz Jakubczyk
Researcher at University of Grenoble
Publications - 51
Citations - 731
Tomasz Jakubczyk is an academic researcher from University of Grenoble. The author has contributed to research in topics: Quantum dot & Exciton. The author has an hindex of 13, co-authored 46 publications receiving 584 citations. Previous affiliations of Tomasz Jakubczyk include University of Warsaw & University of Bremen.
Papers
More filters
Journal ArticleDOI
Radiatively Limited Dephasing and Exciton Dynamics in MoSe2 Monolayers Revealed with Four-Wave Mixing Microscopy.
Tomasz Jakubczyk,Tomasz Jakubczyk,V. Delmonte,V. Delmonte,Maciej Koperski,Maciej Koperski,K. Nogajewski,Clément Faugeras,Wolfgang Werner Langbein,Marek Potemski,Jacek Kasprzak,Jacek Kasprzak +11 more
TL;DR: By implementing four-wave mixing (FWM) microspectroscopy, coherence and population dynamics of the exciton transitions in monolayers of MoSe2 are measured, revealing their dephasing times T2 and radiative lifetime T1 in a subpicosecond range and indicating radiatively limited dephase at a temperature of 6 K.
Journal ArticleDOI
Impact of environment on dynamics of exciton complexes in a WS2 monolayer
Tomasz Jakubczyk,Tomasz Jakubczyk,Karol Nogajewski,Karol Nogajewski,Maciej R. Molas,Maciej R. Molas,Miroslav Bartos,Wolfgang Werner Langbein,Marek Potemski,Marek Potemski,Jacek Kasprzak +10 more
TL;DR: In this article, a WS2 monolayer of transition metal dichalcogenides (TMDs) was studied and the dynamics of the exciton coherence was shown to be lost due to interaction with phonons and relaxation processes towards optically dark excitonic states.
Journal ArticleDOI
Impact of Phonons on Dephasing of Individual Excitons in Deterministic Quantum Dot Microlenses.
Tomasz Jakubczyk,Tomasz Jakubczyk,V. Delmonte,V. Delmonte,Sarah Fischbach,Daniel Wigger,Doris E. Reiter,Q. Mermillod,Q. Mermillod,Peter Schnauber,Arsenty Kaganskiy,Jan-Hindrik Schulze,André Strittmatter,Sven Rodt,Wolfgang Werner Langbein,Tilmann Kuhn,Stephan Reitzenstein,Jacek Kasprzak,Jacek Kasprzak +18 more
TL;DR: This work deterministically fabricates microlenses above selected InAs quantum dots, achieving their efficient coupling to the external light field, and consistently explains the initial coherence decay, the zero-phonon line fraction, and the line shape of the phonon-assisted PL using realistic quantum dot geometries.
Journal ArticleDOI
In-plane radiative recombination channel of a dark exciton in self-assembled quantum dots
Tomasz Smoleński,Tomasz Kazimierczuk,Mateusz Goryca,Tomasz Jakubczyk,Łukasz Kłopotowski,Łukasz Cywiński,Piotr Wojnar,Andrzej Golnik,Piotr Kossacki +8 more
TL;DR: In this article, a radiative recombination channel of dark excitons in self-assembled quantum dots was demonstrated, which is due to a light hole admixture in the excitonic ground state.
Journal ArticleDOI
Coherence and Density Dynamics of Excitons in a Single-Layer MoS2 Reaching the Homogeneous Limit
Tomasz Jakubczyk,Goutham Nayak,Lorenzo Scarpelli,Wei-Lai Liu,Sudipta Dubey,Nedjma Bendiab,Laëtitia Marty,Takashi Taniguchi,Kenji Watanabe,Francesco Masia,Gilles Nogues,Johann Coraux,Wolfgang Werner Langbein,Julien Renard,Vincent Bouchiat,Jacek Kasprzak +15 more
TL;DR: It is found that the exciton dynamics is governed by microscopic disorder on top of the ideal crystal properties, which provides stable monolayer samples with low disorder, avoiding surface contaminations and the resulting exciton broadening and modifications of the dynamics.