Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 5: Quantum Optics I
Q 5.5: Vortrag
Montag, 29. Februar 2016, 12:00–12:15, f442
A Source for Mesoscopic Quantum Optics — •Johannes Tiedau1, Georg Harder1, Adriana E. Lita2, Sae W. Nam2, Thomas Gerrits2, Tim J. Bartley1,2, and Christine Silberhorn1 — 1Universität Paderborn, Integrierte Quantenoptik, Warburger Str. 100, D-33098 Paderborn — 2National Institute of Standards and Technology, Boulder, CO 80305, USA
Parametric down-conversion (PDC) is an established process to generate non-classical states. We present the generation of large, two-mode states in a single spatio-spectral mode from pulsed, single -pass (type II) PDC. Using transition edge sensors, we measure photon number correlations up to 80 photons in each of the two modes, allowing us to calculate correlation functions up to 40th order and herald non-classical distributions with 50 photons per pulse. We achieve these results with 64% detection efficiency in the telecom regime. The mode definition of this source is ideal for non-Gaussian measurements without requiring additional filtering.