Subdiffraction incoherent optical imaging via spatial-mode demultiplexing

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...

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Main Author: Mankei Tsang
Format: Article
Language:English
Published: IOP Publishing 2017-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/aa60ee
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author Mankei Tsang
author_facet Mankei Tsang
author_sort Mankei Tsang
collection DOAJ
description 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.
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spelling doaj.art-e389f6ec8d3f41d5b0940a345b7f14842023-08-08T14:37:07ZengIOP PublishingNew Journal of Physics1367-26302017-01-0119202305410.1088/1367-2630/aa60eeSubdiffraction incoherent optical imaging via spatial-mode demultiplexingMankei Tsanghttps://orcid.org/0000-0001-7173-1239I 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.https://doi.org/10.1088/1367-2630/aa60eesuperresolutionquantum opticsincoherent imagingparameter estimationquantum metrologyfluorescence microscopy
spellingShingle Mankei Tsang
Subdiffraction incoherent optical imaging via spatial-mode demultiplexing
New Journal of Physics
superresolution
quantum optics
incoherent imaging
parameter estimation
quantum metrology
fluorescence microscopy
title Subdiffraction incoherent optical imaging via spatial-mode demultiplexing
title_full Subdiffraction incoherent optical imaging via spatial-mode demultiplexing
title_fullStr Subdiffraction incoherent optical imaging via spatial-mode demultiplexing
title_full_unstemmed Subdiffraction incoherent optical imaging via spatial-mode demultiplexing
title_short Subdiffraction incoherent optical imaging via spatial-mode demultiplexing
title_sort subdiffraction incoherent optical imaging via spatial mode demultiplexing
topic superresolution
quantum optics
incoherent imaging
parameter estimation
quantum metrology
fluorescence microscopy
url https://doi.org/10.1088/1367-2630/aa60ee
work_keys_str_mv AT mankeitsang subdiffractionincoherentopticalimagingviaspatialmodedemultiplexing