Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 42: Poster: Quantum Optics and Photonics III
Q 42.46: Poster
Mittwoch, 2. März 2016, 16:30–19:00, Empore Lichthof
Towards and beyond squeezed vacuum states in a nonlinear crystalline whispering gallery mode resonator — •Alexander Otterpohl1,2, Gerhard Schunk1,2, Ulrich Vogl1,2, Florian Sedlmeir1,2, Golnoush Shafiee1,2, Dmitry Strekalov1,2, Tobias Gehring3, Harald G. L. Schwefel4, Ulrik L. Andersen3, Gerd Leuchs1,2, and Christoph Marquardt1,2 — 1Max Planck Institute for the Science of Light, Guenther-Scharowsky-Str. 1 Bldg. 24, 91058 Erlangen, Germany — 2Institute of Optics, Information and Photonics, University of Erlangen-Nuremberg, Staudtstr. 7 B2, 91058 Erlangen, Germany — 3Department of Physics, Technical University of Denmark, Fysikvej, 2800 Kgs. Lyngby, Denmark — 4Department of Physics, University of Otago, 730 Cumberland Street, 9016 Dunedin, New Zealand
Macroscopic crystalline whispering gallery mode resonators (WGMR) made out of LiNbO3 are a versatile source of non-classical light generated via optical parametric down-conversion [1]. In particular, we have demonstrated squeezing of a single parametric beam as well as twin-beam squeezing at above threshold operation. Here, we present the prospects for generating squeezed vacuum states in WGMRs, which requires degenerate operation below threshold. Furthermore, the pathway to degeneracy allows us to produce frequency combs and facilitates more elaborate proposals such as enhanced optomechanical position detection via intra-cavity squeezing [2].
[1] J. U. Fürst et al., Phys. Rev. Lett. 106, 113901(2011).
[2] V. Peano et al., arXiv:1502.06423v1 (2015), accept. on PRL