Hannover 2016 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 57: Quantum Effects: QED II
Q 57.5: Talk
Thursday, March 3, 2016, 15:45–16:00, f442
Injection locking of a self-sustained cQED oscillator — •Wolters Janik1,2, Elisabeth Schlottmann2, Steffen Holzinger2, Benjamin Lingnau3, Kathy Lüdge3, Christian Schneider4, Martin Kamp4, Sven Höfling4, and Stephan Reitzenstein2 — 1Universität Basel, Departement Physik, CH-4056 Basel — 2Institut für Festkörperphysik, Quantum Devices Group, Technische Universität Berlin, Hardenbergstrasse 36, EW 5-3, 10623 Berlin, Germany — 3Institut für Theoretische Physik, AG Nichtlineare Laserdynamik, Technische Universität Berlin, Hardenbergstrasse 36, EW 7-1, 10623 Berlin, Germany — 4Technische Physik, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
We report on a comprehensive study of external control of a self-sustained cQED oscillator, namely a microscopic laser operating in the weak coupling regime with a few tens of photons in the cavity. Where perfect synchronization or chaotic dynamics are expected for its conventional macroscopic counterparts, stationary oscillation synchronized to the external signal and oscillation at the solitary frequency is observed to occur simultaneously. The experimental findings are quantitatively supported and explained by modeling the cQED oscillator under study. As indicated by the theoretical analysis, the observed partial injection is a phenomenon unique to cQED enhanced oscillators excited with a few tens of quanta. Our studies are a landmark for future experiments on external (quantum) control of optical, opto-mechanical or electronic oscillators exhibiting complex dynamics in the quantum regime.