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Q: Fachverband Quantenoptik und Photonik
Q 30: Poster: Photonics, laser development and applications, ultrashort laser pulses, quantum effects
Q 30.71: Poster
Dienstag, 18. März 2014, 16:30–18:30, Spree-Palais
Generalised N-photon Hong-Ou-Mandel interference effect in free space — •Simon Mährlein1,2, Steffen Oppel1, Ralph Wiegner1, Joachim von Zanthier1,2, and Girish S. Agarwal3,2 — 1Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, 91058 Erlangen, Germany — 2Erlangen Graduate School in Advanced Optical Technologies (SAOT), Universität Erlangen-Nürnberg, 91052 Erlangen, Germany — 3Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072, USA
We propose a simple setup for the realisation of a generalised Hong-Ou-Mandel interferometer. The scheme takes advantage of N input modes evolving in free space and post selection of N output modes via photon detection in the far field. In this way N input modes are symmetrically mixed with N output modes corresponding to the positions of the N detectors. A particularly interesting result is obtained if N single photons are used as input states. By interference of multi-photon quantum paths a generalized Hong-Ou-Mandel dip with total destructive interference is observed for the right choice of detector positions - the so-called “magic positions”.