Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 73: Photonics II
Q 73.1: Vortrag
Freitag, 27. März 2015, 14:30–14:45, B/gHS
Classically entangled optical beams for high-speed kinematic sensing — •Stefan Berg-Johansen1,2, Falk Töppel1,2, Birgit Stiller1,2, Peter Banzer1,2,3, Marco Ornigotti4, Elisabeth Giacobino5, Gerd Leuchs1,2,3, Andrea Aiello1,2, and Christoph Marquardt1,2 — 1Max Planck Institute for the Science of Light, Guenther-Scharowsky-Str. 1/Bldg. 24, D-91058 Erlangen, Germany — 2Institute of Optics, Information and Photonics, University of Erlangen-Nuremberg, Staudtstr. 7/B2, D-91058 Erlangen, Germany — 3Department of Physics, University of Ottawa, 25 Templeton, Ottawa, Ontario, K1N 6N5 Canada — 4Institute of Applied Physics, Friedrich-Schiller University Jena, Max-Wien Platz 1, 07743 Jena, Germany — 5Laboratoire Kastler Brossel, Université Pierre et Marie Curie, École Normale Supérieure, CNRS, 4 place Jussieu, 75252 Paris, France
We investigate configurations of the optical field whose structure is mathematically equivalent to that of entangled quantum systems [1]. Specifically, we consider the radially polarized beam, whose polarization and transverse spatial degrees of freedom (DOF) inherently display an entangled structure [2,3]. As a consequence, a spatial obstruction of the beam may be detected by measurements on the polarization DOF alone. Leveraging this idea, we demonstrate position tracking of a moving particle with GHz temporal resolution.
[1] R. J. C. Spreeuw, Phys. Rev. A 63, 062302 (2001).
[2] A. Holleczek et al., Opt. Express 19(10), 9714 (2011).
[3] F. Töppel et al., New J. Phys. 16, 073019 (2014).