Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
We have experimentally observed an eddy current of exciton polaritons arising in a cylindrical GaAs/AlGaAs pillar microcavity under the nonresonant optical pumping. The polariton current manifests itself in a Mach-Zehnder interferometry image as a characteristic spiral that occurs due to the interference of the light emitted by an exciton-polariton condensate with a reference spherical wave. We have experimentally observed the condensates with the topological charges m=+1,m=-1, and m=-2. The interference pattern corresponding to the m=-2 current represents the twin spiral emerging from the center of the micropillar. The switching between the current modes with different topological charges is achieved by a weak displacement of the pump spot.
Язык оригинала | английский |
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Номер статьи | 195149 |
Число страниц | 6 |
Журнал | Physical Review B |
Том | 97 |
Номер выпуска | 19 |
DOI | |
Состояние | Опубликовано - 25 мая 2018 |
ID: 36005000