Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 35: Poster 2

Q 35.40: Poster

Mittwoch, 14. März 2012, 16:30–19:00, Poster.I+II

Generation of squeezing in higher-order spatial modes with a spatial light modulator — •Marion Semmler1,2, Christian Gabriel1,2, Peter Banzer1,2, Andrea Aiello1,2, Christoph Marquardt1,2, and Gerd Leuchs1,21Max Planck Institute for the Science of Light, Guenther-Scharowsky-Str. 1, D-91058 Erlangen, Germany — 2Institute of Optics, Information and Photonics, University Erlangen-Nuremberg, Staudtstr. 7/B2, D-91058 Erlangen, Germany

We report on our investigations of generating amplitude squeezing in higher-order spatial modes. To achieve this, we use a spatial light modulator which can mode convert squeezed Gaussian modes into the desired higher-order spatial mode. The modulator is capable of transforming Gaussian modes not only into Laguerre-Gaussian and Hermite-Gaussian modes of different order but also into cylindrically polarized modes [1]. These have the intriguing feature that they display entanglement between the polarization and spatial degree of freedom when quadrature squeezed [2]. An efficient generation of these modes is desirable in order to investigate their unique quantum-mechanical properties. In our study we examine the properties of the spatial light modulator and especially focus on its ability to maintain the nonclassicality of the quantum state during the mode conversion process.

[1] C. Maurer et al., New J. Phys. 9, 78(2007).

[2] C. Gabriel et al., Phys. Rev. Lett. 106, 060502(2011).

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