Abstract
We report on the condensation of microcavity exciton polaritons under optical excitation in a microcavity with four embedded InGaAs quantum wells. The polariton laser is characterized by a distinct non-linearity in the input-output-characteristics, which is accompanied by a drop of the emission linewidth indicating temporal coherence and a characteristic persisting emission blueshift with increased particle density. The temporal coherence of the device at threshold is underlined by a characteristic drop of the second order coherence function to a value close to 1. Furthermore an external electric field is used to switch between polariton regime, polariton condensate and photon lasing.
| Original language | English |
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| Pages (from-to) | 31146-31153 |
| Number of pages | 8 |
| Journal | Optics Express |
| Volume | 22 |
| Issue number | 25 |
| Early online date | 8 Dec 2014 |
| DOIs | |
| Publication status | Published - 15 Dec 2014 |