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Far field emission of micropillar and planar microcavities lattice-matched to ZnTe

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Jakubczyk T., Pacuski W., Duch P., Godlewski P., Golnik A., Kruse C., Hommel D., Gaj J.
Open Physics
|
2011
|
vol. 9
|
issue 2
428-431
EN
We investigate light emission from ZnTe-based microcavities containing CdTe quantum dots (QDs), with 2D (planar cavity) and 0D (pillar cavities) photonic confinement. The angular distribution from the planar cavity is presented as well as 2D cross-sections of the far field distribution of radiation from the micropillars. The efficient and desirable modification of the isotropic radiation of the QDs is shown for such structures. The diffraction observed is found to be inherent for such experiments with large numerical aperture of the lens and small diameters of the investigated pillars. This diffraction is successfully modeled.
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