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arXiv · 1712.02200

Super-Resolution Quantum Imaging at the Heisenberg Limit

Manuel Unternährer·Bänz Bessire·Leonardo Gasparini·Matteo Perenzoni·André Stefanov
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Abstract

Quantum imaging exploits the spatial correlations between photons to image object features with a higher resolution than a corresponding classical light source could achieve. Using a quantum correlated $N$-photon state, the method of optical centroid measurement (OCM) was shown to exhibit a resolution enhancement by improving the classical Rayleigh limit by a factor of $1/N$. In this work, the theory of OCM is formulated within the framework of an imaging formalism and is implemented in an exemplary experiment by means of a conventional entangled photon pair source. The expected resolution enhancement of a factor of two is demonstrated. The here presented experiment allows for single-shot operation without scanning or iteration to reproduce the object in the image plane. Thereby, photon detection is performed with a newly developed integrated time-resolving detector array. Multi-photon interference effects responsible for the observed resolution enhancement are discussed and possible alternative implementation possibilities for higher photon number are proposed.

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Manuel Unternährer, Bänz Bessire, Leonardo Gasparini, Matteo Perenzoni, André Stefanov. 2018-01-02. Super-Resolution Quantum Imaging at the Heisenberg Limit. https://doi.org/10.1364/optica.5.001150

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