Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Bernard Sermage"'
Publikováno v:
EPJ Photovoltaics, Vol 9, p 5 (2018)
In crystalline silicon solar cells, the front surface is textured in order to lower the reflection of the incident light and increase the efficiency of the cell. This texturing whose dimensions are a few micrometers wide and high, often makes it diff
Autor:
Pascale Senellart, M. Perrin, Aristide Lemaître, Jacqueline Bloch, Daniele Bajoni, Bernard Sermage
Publikováno v:
physica status solidi (c). 2:3920-3923
The dynamics of microcavity polaritons in the presence of an electron gas is investigated by means of timeresolved photoluminescence. The electrons induce a strong acceleration of the population build-up and decay, both in large wave-vector states (r
Autor:
Bernard Sermage, Pascale Senellart, Jacqueline Bloch, Thierry Amand, K. V. Kavokin, Pierre Renucci, Xavier Marie
Publikováno v:
physica status solidi (c). 2:763-767
The polarisation of exciton-polariton emission is used to determine parameters of the interaction Hamiltonian of cavity polaritons. Linear polarisation of the polariton emission under linearly polarised excitation is theoretically analysed and shown
Publikováno v:
physica status solidi (a). 190:407-411
Non-linear spin-dependent polariton emission is reported in microcavities, studied using polarization- and time-resolved spectroscopy. The experiments reveal an efficient scattering process from pumped polariton modes towards the detected modes with
Publikováno v:
physica status solidi (a). 183:23-27
We report an experimental evidence of the acceleration of exciton-polaritons propagating in-plane of a semiconductor microcavity in the regime of the ballistic transport. The acceleration is achieved due to the gradient of the thickness of the cavity
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 7:676-680
We study the angular dependence of the emission from cavity polaritons resonantly excited by a picosecond laser pulse. We observe that, in the first stage, the initial excitation is rapidly redistributed by elastic scattering along a well-defined rin
Publikováno v:
Physical Review B. 60:R8509-R8512
Autor:
C. Meriadec, T. Rivera, F Olivier-martin, Jean-Louis Oudar, Isabelle Sagnes, Bernard Sermage, J.P. Debray, Jean-Christophe Harmand, G Ungaro, C. Kazmierski, R. Madani, R. Raj
Publikováno v:
Journal of Crystal Growth. :837-840
A 1.48 μm vertical cavity structure was realised on InP substrate including a n-type AlGaAsSb/AlAsSb bottom mirror, a λ thick AlGaInAs cavity with strained quantum wells, and a fused p-type AlGaAs/GaAs top mirror. The structure exhibits laser emiss
Autor:
R. Planel, Bernard Sermage, Izo Abram, V. Thierry-Mieg, Jean-Michel Gérard, Jacqueline Bloch, J. Y. Marzin
Publikováno v:
Le Journal de Physique IV. :Pr2-15
In a Quantum Well embedded in a planar optical microcavity, excitons can be strongly coupled to the electromagnetic standing wave and form 2D polaritons. If N Quantum Wells are placed in the microcavity, they cooperate to a collective polariton state
Autor:
V. Thierry-Mieg, Bernard Sermage, Bernard Legrand, E. Costard, Bruno Gayral, Jean-Michel Gérard
Publikováno v:
Superlattices and Microstructures. 25:401-404
We study, by time-resolved photoluminescence, the radiative lifetime of InAs quantum boxes (QBs) placed in the core of small volume and high finesse GaAs/AlAs pillar microresonators. The spontaneous emission rate of the QBs, which are on-resonance wi