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Autor:
Richter, Steffen, Michalsky, Tom, Sturm, Chris, Rosenow, Bernd, Grundmann, Marius, Schmidt-Grund, Rüdiger
Publikováno v:
Phys. Rev. A 95, 023836 (2017)
Planar microcavities allow the control and manipulation of spin-polarization, manifested in phenomena like the optical spin Hall effect due to the intrinsic polarization mode splitting. Here, we study a transparent microcavity with broken rotational
Externí odkaz:
http://arxiv.org/abs/1609.07653
Autor:
Michalsky, Tom, Franke, Helena, Buschlinger, Robert, Peschel, Ulf, Grundmann, Marius, Schmidt-Grund, Rüdiger
We present a high quality two-dimensional cavity structure based on ZnO nanowires coated with concentrical Bragg reflectors. The spatial mode distribution leads to the simultaneous appearance of the weak and strong coupling regime even at room temper
Externí odkaz:
http://arxiv.org/abs/1602.06804
Autor:
Wille, Marcel, Sturm, Chris, Michalsky, Tom, Röder, Robert, Ronning, Carsten, Schmidt-Grund, Rüdiger, Grundmann, Marius
Publikováno v:
Nanotechnology 27, 225702 (2016)
We report on the temporal lasing dynamics of high quality ZnO nanowires using time-resolved micro-photoluminescence technique. The temperature dependence of the lasing characteristics and of the corresponding decay constants demonstrate the formation
Externí odkaz:
http://arxiv.org/abs/1601.03866
Autor:
Dietrich, Christof P., Schmidt-Grund, Rüdiger, Michalsky, Tom, Lange, Martin, Grundmann, Marius
We report condensation of hexagonal whispering gallery modes (WGM) at room temperature in ZnO microwires that embody nearly perfect polygonal whispering gallery microresonators. The condensate regime is achieved in the UV spectral range only at energ
Externí odkaz:
http://arxiv.org/abs/1501.01255
Autor:
Thunert, Martin, Janot, Alexander, Franke, Helena, Sturm, Chris, Michalsky, Tom, Martín, María Dolores, Viña, Luis, Rosenow, Bernd, Grundmann, Marius, Schmidt-Grund, Rüdiger
Publikováno v:
Phys. Rev. B 93, 064203 (2016)
We report on the influence of disorder on an exciton-polariton condensate in a ZnO based bulk planar microcavity and compare experimental results with a theoretical model for a non-equilibrium condensate. Experimentally, we detect intensity fluctuati
Externí odkaz:
http://arxiv.org/abs/1412.8667
Autor:
Lorite, Israel, Kumar, Yogesh, Esquinazi, Pablo, Friedländer, Stefan, Pöppl, Andreas, Michalsky, Tom, Meijer, Jan, Grundmann, Marius, Meyer, Thomas, Estrela-Lopis, Irina
An emerging branch of electronics, the optospintronics, would be highly boosted if the control of magnetic order by light is implemented in magnetic semiconductors’ nanostructures being compatible with the actual technology. Here, we show that the
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A31213
https://ul.qucosa.de/api/qucosa%3A31213/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A31213/attachment/ATT-0/
We conclusively explain the different lasing mode energies in ZnO nano- and microcavities observed by us and reported in literature. The limited penetration depth of usually used excitation lasers results in an inhomogeneous spatial gain region depen
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A23548
https://ul.qucosa.de/api/qucosa%3A23548/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A23548/attachment/ATT-0/
Autor:
Richter, Steffen, Michalsky, Tom, Fricke, Lennart, Sturm, Chris, Franke, Helena, Grundmann, Marius, Schmidt-Grund, Rüdiger
We address the problem of the correct description of light-matter coupling for excitons and cavity photons in the case of systems with multiple photon modes or excitons, respectively. In the literature, two different approaches for the phenomenologic
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A31195
https://ul.qucosa.de/api/qucosa%3A31195/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A31195/attachment/ATT-0/
Autor:
Richter, Steffen1 steffen.richter@physik.uni-leipzig.de, Michalsky, Tom1, Sturm, Chris1, Rosenow, Bernd2, Grundmann, Marius1, Schmidt-Grund, Rüdiger1
Publikováno v:
Physical Review A: Atomic, Molecular & Optical Physics. Feb2017, Vol. 95 Issue 2, p1-1. 1p.