Subdiffraction incoherent optical imaging via spatial-mode demultiplexing

By Mankei Tsang. 2016

135 citations recorded by the source corpus.

I propose a spatial-mode demultiplexing (SPADE) measurement scheme for the far-field imaging of spatially incoherent optical sources. For any object too small to be resolved by direct imaging under the diffraction limit, I show that SPADE can estimate its second or higher moments much more precisely than direct imaging can fundamentally do in the presence of photon shot noise. I also prove that SPADE can approach the optimal precision allowed by quantum mechanics in estimating the location and scale parameters of a subdiffraction object. Realizable with far-field linear optics and photon counting, SPADE is expected to find applications in both fluorescence microscopy and astronomy.

Subfields: Biomedical Engineering, Biophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/b70dc937e732797c72b757b5d5732ee1cbf42b75

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In Biomedical Engineering

In Biophysics

In Instrumentation

Citations in the corpus

Modes and states in quantum optics (2019, background): “…it on the detection mode which is the combination of two oppositely displaced TEM00 modes (Paúr et al., 2016), or demultiplex the amplitude image on the basis of spatial Hermitegauss modes (Tsang, 2017) by measuring the coefficients of the decomposition of the image field on such a mode basis.”