Berlin 2018 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 56: Focus Session: Quantum Nanophotonics in Solid State Systems II (joint session HL/TT)
TT 56.9: Vortrag
Mittwoch, 14. März 2018, 12:15–12:30, EW 201
Photon-Number-Resolving Transition Edge Sensors for the Metrology of Quantum-Light Sources — •Marco Schmidt1,2, Martin von Helversen1, Fabian Gericke1, Elisabeth Schlottmann1, Manuel Gschrey1, Peter Schnauber1, Jan-Hindrik Schulze1, André Strittmatter1, Jörn Beyer2, Sven Rodt1, Tobias Heindel1, and Stephan Reitzenstein1 — 1Institut für Festkörperphysik, Technische Universität Berlin, 10623 Berlin, Germany — 2Physikalisch-Technische Bundesanstalt, Abbestraße 2-12, 10587 Berlin, Germany
Photon-number-resolving detectors (PNR) allow for direct access to the photon number distribution of nanophotonic light sources and
can thus be exploited to explore the photon statistics of semiconductor-based non-classical light sources.
In this work, we report on the realization of a stand-alone measurement system with two
fiber-coupled transiton edge sensors (TESs) integrated within a compact adiabatic demagnetization refrigerator.
The performance of the detector system is analyzed in terms of its detection efficiency, which is determined to be larger than 87 % (850 - 950 nm).
As an exemplary application in QD-metrology, we employ this detector to evaluate the photon number distribution of QD-based single- and twin- photon sources [1] based on deterministically fabricated QD microlenses.
[1] T. Heindel et al., Nat. Commun. 8, 14870, (2017)