Abstract
We introduce photon-statistics excitation spectroscopy and exemplarily apply it to a quantum-dot micropillar laser. Both the intensity and the photon number statistics of the emission from the micropillar show a strong dependence on the photon statistics of the light used for excitation of the sample. The results under coherent and pseudothermal excitation reveal that a description of the laser properties in terms of mean input photon numbers is not sufficient. It is demonstrated that the micropillar acts as a superthermal light source when operated close to its threshold. Possible applications for important spectroscopic techniques are discussed.
| Original language | English |
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| Article number | 027401 |
| Journal | Physical Review Letters |
| Volume | 115 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 7 Jul 2015 |