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arXiv · 1911.04744

Resolution limits of spatial mode demultiplexing with noisy detection

Yink Loong Len·Chandan Datta·Michał Parniak·Konrad Banaszek
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Abstract

We consider the problem of estimating the spatial separation between two mutually incoherent point light sources using the super-resolution imaging technique based on spatial mode demultiplexing with noisy detectors. We show that in the presence of noise the resolution of the measurement is limited by the signal-to-noise ratio (SNR) and the minimum resolvable spatial separation has a characteristic dependence of $\sim$SNR$^{-1/2}$. Several detection techniques, including direct photon counting, as well as homodyne and heterodyne detection are considered.

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Yink Loong Len, Chandan Datta, Michał Parniak, Konrad Banaszek. 2019-11-12. Resolution limits of spatial mode demultiplexing with noisy detection. https://doi.org/10.1142/s0219749919410156

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