Photon-statistics excitation spectroscopy of a single two-level system
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We investigate the influence of the photon statistics on the excitation dynamics of a single two level system. A single semiconductor quantum dot represents the two level system and is resonantly excited either with coherent laser light, or excited with chaotic light, with photon statistics corresponding to that of thermal radiation. Experimentally, we observe a reduced absorption cross section under chaotic excitation in the steady-state. In the transient regime, the Rabi oscillations observable under coherent excitation disappear under chaotic excitation. Likewise, in the emission spectrum the well-known Mollow triplet, which we observe under coherent drive, disappears under chaotic excitation. Our observations are fully consistent with theoretical predictions based on the semi-classical Bloch equation approach.
Strauß , M , Placke , M , Kreinberg , S , Schneider , C , Kamp , M , Hoefling , S , Wolters , J & Reitzenstein , S 2016 , ' Photon-statistics excitation spectroscopy of a single two-level system ' Physical Review. B, Condensed matter and materials physics , vol 93 , no. 24 , 241306(R) .
Physical Review. B, Condensed matter and materials physics
© 2016 American Physical Society. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://journals.aps.org/prb/ http://dx.doi.org/10.1103/PhysRevB.93.241306
The research leading to these results has received funding from from the European Research Council (ERC) under the European Union’s Seventh Framework ERC Grant Agreement No. 615613 and from the German Research Foundation via Project No. RE2974/5-1.
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