Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 31: Poster: Quantum Optics and Photonics II
Q 31.25: Poster
Dienstag, 24. März 2015, 17:00–19:00, C/Foyer
Experimental Quantum Imaging of an irregular array of Thermal Light Sources — •Thomas Mehringer1,2, Anton Classen1, Raimund Schneider1,2, and Joachim von Zanthier1,2 — 1Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, 91058 Erlangen — 2Erlangen Graduate School in Advanced Optical Technologies (SAOT), Universität Erlangen-Nürnberg, 91052 Erlangen
Measuring multiphoton interferences is a common technique in the field of quantum imaging. Recently we demonstrated that with a setup of N equidistant independent thermal light sources a spatial resolution below the classical Abbe limit can be reached by measuring spatial photon correlations of order m = N [1]. By choosing particular detector positions, the highest spatial frequency of the correlation signal can be isolated producing a reduced fringe spacing which leads to the increased resolution. Here we show that for an arbitrary array of irregular arranged sources any desired spatial frequency can be isolated by measuring spatial photon correlations of order m ≥ 3. We discuss how this technique can be used for imaging with a resolution beyond the classical limit. The experiment is realised with optical fibers, each serving as an independent pseudothermal source, which brings the advantage of being versatile with respect to the source geometry.
S. Oppel, T. Büttner, P. Kok, J. von Zanthier, Superresolving Multiphoton Interferences with Independent Light Sources, Phys. Rev. Lett. 109, 233603 (2012)