14 November 2017 Quantum state reconstruction and photon number statistics for low dimensional semiconductor opto-electronic devices
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Quantum state tomography and the reconstruction of the photon number distribution are techniques to extract the properties of a light field from measurements of its mean and fluctuations. These techniques are particularly useful when dealing with macroscopic or mesoscopic systems, where a description limited to the second order autocorrelation soon becomes inadequate. In particular, the emission of nonclassical light is expected from mesoscopic quantum dot systems strongly coupled to a cavity or in systems with large optical nonlinearities. We analyze the emission of a quantum dot-semiconductor optical amplifier system by quantifying the modifications of a femtosecond laser pulse propagating through the device. Using a balanced detection scheme in a self-heterodyning setup, we achieve precise measurements of the quadrature components and their fluctuations at the quantum noise limit1. We resolve the photon number distribution and the thermal-to-coherent evolution in the photon statistics of the emission. The interferometric detection achieves a high sensitivity in the few photon limit. From our data, we can also reconstruct the second order autocorrelation function with higher precision and time resolution compared with classical Hanbury Brown-Twiss experiments.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fabian Böhm, Fabian Böhm, Nicolai B. Grosse, Nicolai B. Grosse, Mirco Kolarczik, Mirco Kolarczik, Bastian Herzog, Bastian Herzog, Alexander Achtstein, Alexander Achtstein, Nina Owschimikow, Nina Owschimikow, Ulrike Woggon, Ulrike Woggon, } "Quantum state reconstruction and photon number statistics for low dimensional semiconductor opto-electronic devices", Proc. SPIE 10359, Quantum Nanophotonics, 1035907 (14 November 2017); doi: 10.1117/12.2273855; https://doi.org/10.1117/12.2273855

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