Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Bouet, L."'
Autor:
Vidal, M., Durnev, M. V., Bouet, L., Amand, T., Glazov, M. M., Ivchenko, E. L., Zhou, P., Wang, G., Mano, T., Kuroda, T., Marie, X., Sakoda, K., Urbaszek, B.
Publikováno v:
Phys. Rev. B 94, 121302 (2016)
In self assembled III-V semiconductor quantum dots, valence holes have longer spin coherence times than the conduction electrons, due to their weaker coupling to nuclear spin bath fluctuations. Prolonging hole spin stability relies on a better unders
Externí odkaz:
http://arxiv.org/abs/1603.02909
Autor:
Durnev, M. V., Vidal, M., Bouet, L., Amand, T., Glazov, M. M., Ivchenko, E. L., Zhou, P., Wang, G., Mano, T., Ha, N., Kuroda, T., Marie, X., Sakoda, K., Urbaszek, B.
Publikováno v:
Phys. Rev. B 93, 245412 (2016)
We present a combined experimental and theoretical study of highly charged and excited electron-hole complexes in strain-free (111) GaAs/AlGaAs quantum dots grown by droplet epitaxy. We address the complexes with one of the charge carriers residing i
Externí odkaz:
http://arxiv.org/abs/1511.08196
Autor:
Wang, G., Gerber, I. C., Bouet, L., Lagarde, D., Balocchi, A., Vidal, M., Palleau, E., Amand, T., Marie, X., Urbaszek, B.
Publikováno v:
2D Materials, 2, 045005 (2015)
We combine linear and non-linear optical spectroscopy at 4K with ab initio calculations to study the electronic bandstructure of MoSe2 monolayers. In 1-photon photoluminescence excitation (PLE) and reflectivity we measure a separation between the A-
Externí odkaz:
http://arxiv.org/abs/1504.06333
Autor:
Wang, G., Bouet, L., Glazov, M. M., Amand, T., Ivchenko, E. L., Palleau, E., Marie, X., Urbaszek, B.
Publikováno v:
2D Materials 2 (2015) 034002
We perform photoluminescence experiments at 4K on two different transition metal diselenide monolayers, namely MoSe2 and WSe2 in magnetic fields $B_z$ up to 9T applied perpendicular to the sample plane. In MoSe2 monolayers the valley polarization of
Externí odkaz:
http://arxiv.org/abs/1503.04105
Autor:
Wang, G., Marie, X., Bouet, L., Vidal, M., Balocchi, A., Amand, T., Lagarde, D., Urbaszek, B.
Publikováno v:
Applied Physics Letters 105, 182105 (2014)
We investigate exciton dynamics in 2H-WSe2 bilayers in time-resolved photoluminescence (PL) spectroscopy. Fast PL emission times are recorded for both the direct exciton with $\tau_{D}$ ~ 3 ps and the indirect optical transition with $\tau_{i}$ ~ 25
Externí odkaz:
http://arxiv.org/abs/1409.8553
Autor:
Bouet, L., Vidal, M., Mano, T., Ha, N., Kuroda, T., Durnev, M. V., Glazov, M. M., Ivchenko, E. L., Marie, X., Amand, T., Sakoda, K., Wang, G., Urbaszek, B.
Publikováno v:
Applied Physics Letters 105, 082111 (2014)
We demonstrate charge tuning in strain free GaAs/AlGaAs quantum dots (QDs) grown by droplet epitaxy on a GaAs(111)A substrate. Application of a bias voltage allows the controlled charging of the QDs from $-3|e|$ to $+2|e|$. The resulting changes in Q
Externí odkaz:
http://arxiv.org/abs/1407.6585
Autor:
Wang, G., Marie, X., Gerber, I., Amand, T., Lagarde, D., Bouet, L., Vidal, M., Balocchi, A., Urbaszek, B.
Publikováno v:
Physical Review Letters 114, 097403 (2015)
Monolayers (MLs) of MoS2 and WSe2 are 2D semiconductors with strong, direct optical transitions that are governed by tightly Coulomb bound eletron-hole pairs (excitons). The optoelectronic properties of these transition metal dichalcogenides are dire
Externí odkaz:
http://arxiv.org/abs/1404.0056
Publikováno v:
Phys. Rev. B 89, 201302(R) (2014)
We study the neutral exciton energy spectrum fine structure and its spin dephasing in transition metal dichalcogenides such as MoS$_2$. The interaction of the mechanical exciton with its macroscopic longitudinal electric field is taken into account.
Externí odkaz:
http://arxiv.org/abs/1403.0108
Autor:
Wang, G., Bouet, L., Lagarde, D., Vidal, M., Balocchi, A., Amand, T., Marie, X., Urbaszek, B.
Publikováno v:
Physical Review B 90, 075413 (2014)
Optical interband transitions in monolayer transition metal dichalcogenides such as WSe2 and MoS2 are governed by chiral selection rules. This allows efficient optical initialization of an electron in a specific K-valley in momentum space. Here we pr
Externí odkaz:
http://arxiv.org/abs/1402.6009
Autor:
Sallen, G., Kunz, S., Amand, T., Bouet, L., Kuroda, T., Mano, T., Paget, D., Krebs, O., Marie, X., Sakoda, K., Urbaszek, B.
Publikováno v:
Nature Communications 5, Article number: 3268 (2014) open
Optical and electrical control of the nuclear spin system allows enhancing the sensitivity of NMR applications and spin-based information storage and processing. Dynamic nuclear polarization in semiconductors is commonly achieved in the presence of a
Externí odkaz:
http://arxiv.org/abs/1309.1288