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Stimulated Scattering of Microcavity Polaritons

100%

Bloch J., Senellart P., Thierry-Mieg V., Marzin J. Y.

Acta Physica Polonica A

2000

vol. 98

issue 3

295-302

We report on cw optical experiments performed in a semiconductor microcavity containing a single quantum well in the strong coupling regime. Angularly resolved photoluminescence measurements under non-resonant excitation show the collapse of a relaxation bottleneck as the excitation power is increased. As a result, the emission close to k_{∥}=0 presents a non-linear behavior. In a two-beam experiment we resonantly inject polaritons at k_{∥}=0 and show that relaxation from states with large in-plane wave vector toward k_{∥}=0 is stimulated by the polariton final state population.

Excitonic Polaritons in Semiconductor Micropillars

64%

Bajoni D., Wertz E., Senellart P., Miard A., Semenova E., Lemaître A., Sagnes I., Bouchoule S., Bloch J.

Acta Physica Polonica A

2008

vol. 114

issue 5

933-943

We describe the physics of cavity polaritons in semiconductor micropillars. Cavity polaritons are exciton-photon entangled states arising from the strong coupling between excitons and the optical modes of a cavity. In micropillars, the photon three-dimensional confinement results in a discrete spectrum of 0D polariton states. Characterization of the linear properties of these micropillars will be presented. Then we will show how this system can be used to generate parametric photons and to obtain polariton lasing.

Influence of an Electric Field on Fine Properties of III-V and II-VI Quantum Dots Systems

64%

Kowalik K., Krebs O., Kudelski A., Golnik A., Lemaître A., Senellart P., Karczewski G., Kossut J., Gaj J., Voisin P.

Acta Physica Polonica A

2004

vol. 106

issue 2

177-184

We investigate the influence of an electric field on the optical properties of single quantum dots. For sample made of III-V compounds micron-size electro-optical structures were produced in order to apply an electric field in the dot plane. For several individual dots lines significant variations of the anisotropic exchange splitting with the field were observed. On sample made of II-VI compounds we demonstrate the influence of electric field fluctuations on the luminescence of a single quantum dot.

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3 Acta Physica Polonica A

1 2008

1 2004

1 2000

3 Senellart P.

2 Bloch J.

2 Lemaître A.

1 Bajoni D.

1 Bouchoule S.

1 Gaj J.

1 Golnik A.

1 Karczewski G.

1 Kossut J.

1 Kowalik K.

1 Krebs O.

1 Kudelski A.

1 Marzin J. Y.

1 Miard A.

1 Sagnes I.

1 Semenova E.

1 Thierry-Mieg V.

1 Voisin P.

1 Wertz E.

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Stimulated Scattering of Microcavity Polaritons

Excitonic Polaritons in Semiconductor Micropillars

Influence of an Electric Field on Fine Properties of III-V and II-VI Quantum Dots Systems