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arXiv · 1707.00252

Effect of magnetic field on the lasing threshold of a semimagnetic polariton condensate

J. -G. Rousset·B. Piętka·M. Król·R. Mirek·K. Lekenta·J. Szczytko·W. Pacuski·M. Nawrocki
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Abstract

We evidence magnetic field triggered polariton lasing in a microcavity containing semimagnetic quantum wells. This effect is associated with a decrease of the polariton lasing threshold power in magnetic field. The observed magnetic field dependence of the threshold power systematically exhibits a minimum which only weakly depends on the zero-field photon-exciton detuning. These results are interpreted as a consequence of the polariton giant Zeeman splitting which in magnetic field: leads to a decrease of the number of accessible states in the lowest polariton branch by a factor of two, and substantially changes the photon-exciton detuning.

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J. -G. Rousset, B. Piętka, M. Król, R. Mirek, K. Lekenta, J. Szczytko, W. Pacuski, M. Nawrocki. 2017-08-25. Effect of magnetic field on the lasing threshold of a semimagnetic polariton condensate. https://doi.org/10.1103/physrevb.96.125403

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