Mainz 2017 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 4: Quantum Optics I

Q 4.1: Gruppenbericht

Montag, 6. März 2017, 14:30–15:00, P 5

A mixed bag of quantumness with a bit of tech — Kai Barnscheidt, Tom Ettrich, •Boris Hage, Semjon Köhnke, Melanie Mraz, Christian Reiher, Dieter Schick, and Oskar Schlettwein — Universität Rostock, Institut für Physik, AG Experimentelle Quantenoptik, Rostock, Germany

We report on the activities of the research group 'Experimental Quantumoptics' at the University of Rostock, which are divided into three areas:

1) The detection and verification including experimental errors of the quantumness/nonclassicality of the state of a laser beam using linear, nonlinear and single photon detectors. Additionally, the advance towards a measurement based quantification of nonclassicality.

2) The complete quantum state tomography (single mode) of a pulsed multi mode squeezed state of light emerging from a Kerr nonlinear optical fibre. Additionally, the advances towards a reliable simulation of the processes in the optical fibre including losses, dispersion (higher order), Kerr nonlinearity and Raman effect.

3) Progress towards the implementation of an optical spring with micro cantilevers used in atomic force microscopy with an optical excitation using photothermal and radiation pressure coupling.