Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Grousson, Roger"'
Autor:
Monniello, Léonard, Reigue, Antoine, Hostein, Richard, Lemaitre, Aristide, Martinez, Anthony, Grousson, Roger, Voliotis, Valia
We report on two-photon interferences from highly indistinguishable single photons emitted by a quantum dot. Stricly resonant excitation with picosecond laser pulses allows coherent state preparation with a signifi- cantly increased coherence time (T
Externí odkaz:
http://arxiv.org/abs/1403.8001
Autor:
Monniello, Léonard, Tonin, Catherine, Hostein, Richard, Lemaitre, Aristide, Martinez, Anthony, Voliotis, Valia, Grousson, Roger
We report on coherent emission of the neutral exciton state in a single semiconductor self-assembled InAs/GaAs quantum dot embedded in a one-dimensional waveguide, under resonant picosecond pulsed excita- tion. Direct measurements of the radiative li
Externí odkaz:
http://arxiv.org/abs/1304.4756
Autor:
Kukliński, Krzysztof, Kłopotowski, Łukasz, Fronc, Krzysztof, Wiater, Maciej, Wojnar, Piotr, Rutkowski, Paweł, Voliotis, Valia, Grousson, Roger, Karczewski, Grzegorz, Kossut, Jacek, Wojtowicz, Tomasz
Publikováno v:
Appl. Phys. Lett 99, 141906 (2011)
We present photoluminescence studies of highly excited single self--assembled CdTe quantum dots under continuous--wave and pulsed excitations. We observe appearance of emission bands related to sequential filling of s--, p-- and d--shells. We analyze
Externí odkaz:
http://arxiv.org/abs/1108.0820
Autor:
Kłopotowski, Łukasz, Voliotis, Valia, Kudelski, Arkadiusz, Tartakovskii, Alexander I., Wojnar, Piotr, Fronc, Krzysztof, Grousson, Roger, Krebs, Oliver, Skolnick, Maurice S., Karczewski, Grzegorz, Wojtowicz, Tomasz
Publikováno v:
Phys. Rev. B 83, 155319 (2011)
We present studies on Coulomb interactions in single self-assembled CdTe quantum dots. We use a field effect structure to tune the charge state of the dot and investigate the impact of the charge state on carrier wave functions. The analysis of the q
Externí odkaz:
http://arxiv.org/abs/1101.0506
Autor:
Kłopotowski, Łukasz, Cywiński, Łukasz, Wojnar, Piotr, Voliotis, Valia, Fronc, Krzysztof, Kazimierczuk, Tomasz, Golnik, Andrzej, Ravarro, Marco, Grousson, Roger, Karczewski, Grzegorz, Wojtowicz, Tomasz
Publikováno v:
Physical Review B 081306(R) (2011)
We study the formation dynamics of a spontaneous ferromagnetic order in single self-assembled CdMnTe quantum dots. By measuring time-resolved photoluminescence, we determine the formation times for QDs with Mn ion contents x varying from 0.01 to 0.2.
Externí odkaz:
http://arxiv.org/abs/1012.1179
Autor:
Wertz, Esther, Ferrier, Lydie, Solnyshkov, Dimitri, Johne, Robert, Sanvitto, Daniele, Lemaître, Aristide, Sagnes, Isabelle, Grousson, Roger, Kavokin, Alexey V., Senellart, Pascale, Malpuech, Guillaume, Bloch, Jacqueline
Cavity exciton-polaritons (polaritons) are bosonic quasi-particles offering a unique solid-state system to investigate interacting condensates. Up to now, disorder induced localization and short lifetimes have prevented the establishment of long rang
Externí odkaz:
http://arxiv.org/abs/1004.4084
Autor:
Guillet, Thierry, Grousson, Roger, Voliotis, Valia, Menant, Michel, Wang, Xue-Lun, Ogura, Mutsuo
Publikováno v:
Phys. Rev. B 67, 235324 (2003)
We report on the study of many-body interactions in a single high quality V-shaped quantum wire by means of continuous and time-resolved microphotoluminescence. The transition from a weakly interacting exciton gas when the carrier density n is less t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301229
Publikováno v:
Phys. Rev. B 68, 045319 (2003)
The exciton localization is studied in GaAs/GaAlAs V-shaped quantum wires (QWRs) by high spatial resolution spectroscopy. Scanning optical imaging of different generations of samples shows that the localization length has been enhanced as the growth
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301223
Autor:
Grousson, Roger
Propriétés photorefringentes et photovoltaïques de linbo::(3) dope au fer. On décrit des expériences de traitement d'image en lumière partiellement cohérente dans lesquelles le cristal de linbo::(3) est utilise comme récepteur d'image. On peu
Externí odkaz:
http://pastel.archives-ouvertes.fr/pastel-00716155
http://pastel.archives-ouvertes.fr/docs/00/71/61/55/PDF/GROUSSON_1982.pdf
http://pastel.archives-ouvertes.fr/docs/00/71/61/55/PDF/GROUSSON_1982.pdf
Autor:
Melet, Romain, Voliotis, Valia, Grousson, Roger, Wang, Xue-Lun, Lemaître, Aristide, Martinez, Anthony
Publikováno v:
In Superlattices and Microstructures 2008 43(5):474-477
