Daniel Stephan
University of Warsaw
9 Papers
34 Citations
Daniel Stephan is an academic researcher from University of Warsaw. The author has contributed to research in topics: Exciton & Polariton. The author has an hindex of 5, co-authored 9 publications.
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Papers
Tunable optical spin Hall effect in a liquid crystal microcavity
K. Lekenta,M. Król,Rafał Mirek,Karolina Łempicka,Daniel Stephan,Rafał Mazur,Przemysław Morawiak,Przemysław Kula,Wiktor Piecek,Pavlos G. Lagoudakis,Barbara Piętka,Jacek Szczytko +11 more
TL;DR: This work demonstrates external control of spin currents by modulating the splitting between transverse electric and magnetic fields in liquid crystals integrated in microcavities in order to control spin currents over macroscopic distances.
(Cd,Zn,Mg)Te-based microcavity on MgTe sacrificial buffer: Growth, lift-off, and transmission studies of polaritons
Bartłomiej Seredyński,M. Król,P. Starzyk,Rafał Mirek,Maciej Ściesiek,Kamil Sobczak,Jolanta Borysiuk,Daniel Stephan,J.-G. Rousset,Jacek Szczytko,Barbara Piętka,Wojciech Pacuski +11 more
TL;DR: In this paper, the authors present the design and molecular beam epitaxy growth of semimagnetic (Cd,Zn,Mn)Te quantum wells embedded into a Cd, Zn, MgTe-based microcavity, which can be easily separated from the GaAs substrate.
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Valley polarization of exciton–polaritons in monolayer WSe2 in a tunable microcavity
M. Król,K. Lekenta,Rafał Mirek,Karolina Łempicka,Daniel Stephan,K. Nogajewski,K. Nogajewski,Maciej R. Molas,Maciej R. Molas,Adam Babiński,Marek Potemski,Marek Potemski,Jacek Szczytko,Barbara Piętka +13 more
TL;DR: In this paper, the authors report on a strong coupling regime between excitons in monolayer WSe2 and photons confined in an open, voltage-tunable dielectric microcavity.
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Doubly Dressed Bosons: Exciton Polaritons in a Strong Terahertz Field
Barbara Piętka,Nataliya Bobrovska,Daniel Stephan,M. Teich,M. Król,S. Winnerl,Alexej Pashkin,Rafał Mirek,K. Lekenta,François Morier-Genoud,Harald Schneider,Benoit Deveaud,Benoit Deveaud,Manfred Helm,Michał Matuszewski,Jacek Szczytko +15 more
TL;DR: The existence of a novel quasiparticle, an exciton in a semiconductor doubly dressed with two photons of different wavelengths: a near infrared cavity photon and terahertz photon, with the THz coupling strength approaching the ultrastrong coupling regime is demonstrated.
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Intersublevel dephasing in InAs/GaAs quantum dots below the Reststrahlen band
TL;DR: Using transient four-wave mixing in the terahertz range, the authors measured the s-p inter-sublevel dephasing time in self-assembled InAs/GaAs quantum dots for transition energies below the Reststrahlen band.
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