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arXiv · 1606.08332

Achieving quantum-limited optical resolution

Martin Paur·Bohumil Stoklasa·Zdenek Hradil·Luis L. Sanchez-Soto·Jaroslav Rehacek
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Abstract

We establish a simple method to assess the quantum Fisher information required for resolving two incoherent point sources with an imaging system. The resulting Cram\'er-Rao bound shows that the standard Rayleigh limit can be surpassed by suitable coherent measurements. We explicitly find these optimal strategies and present a realization for Gaussian and slit apertures. This involves a projection onto the optimal bases that is accomplished with digital holographic techniques and is compared with a CCD position measurement. Our experimental results unequivocally confirm unprecedented sub-Rayleigh precision.

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Martin Paur, Bohumil Stoklasa, Zdenek Hradil, Luis L. Sanchez-Soto, Jaroslav Rehacek. 2016-06-27. Achieving quantum-limited optical resolution. https://arxiv.org/abs/1606.08332

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