Regensburg 2019 – wissenschaftliches Programm
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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur
KFM 4: Focus: Whispering-Gallery-Mode Resonators
KFM 4.7: Vortrag
Montag, 1. April 2019, 12:10–12:30, H47
Non-classical light from a nonlinear crystalline whispering gallery mode resonator — •Alexander Otterpohl1,2, Florian Sedlmeir1,2, Thomas Dirmeier1,2, Ulrich Vogl1,2, Gerhard Schunk1,2, Golnoush Shafiee1,2, Dmitry Strekalov1,2, Harald G. L. Schwefel3, Tobias Gehring4, Ulrik L. Andersen4, Gerd Leuchs1,2, and Christoph Marquardt1,2 — 1Max Planck Institute for the Science of Light, Staudtstr. 2, 91058 Erlangen, Germany — 2Institute of Optics, Information and Photonics, University Erlangen-Nürnberg, Staudtstr. 7 B2, 91058 Erlangen, Germany — 3The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Physics, University of Otago, 730 Cumberland Street, 9016 Dunedin, New Zealand — 4Department of Physics, Technical University of Denmark, Fysikvej, 2800 Kgs. Lyngby, Denmark
Macroscopic crystalline whispering gallery mode resonators (WGMR) made out of LiNbO3 have turned out to be an efficient and compact source of non-classical light generated via optical parametric down-conversion [1,2]. We report on the generation of squeezed vacuum, which is a special subclass of non-classical light, and the associated experimental challenges such as temperature stabilization. Furthermore, we discuss possible future applications like CV quantum computing and optomechanics [3].
[1] J. U. Fürst et al., Phys. Rev. Lett. 106, 113901 (2011).
[2] M. Förtsch et al., Nat. Commun. 4, 1818 (2013).
[3] V. Peano et al., Phys. Rev. Lett. 115, 243603(2015).