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Tytuł:
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Experimental demonstration of superresolution of partially coherent light sources using parity sorting.
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Autorzy:
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Wadood SA
Liang K
Zhou Y
Yang J
Alonso MA
Qian XF
Malhotra T
Hashemi Rafsanjani SM
Jordan AN
Boyd RW
Vamivakas AN
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Źródło:
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Optics express [Opt Express] 2021 Jul 05; Vol. 29 (14), pp. 22034-22043.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: Washington, DC : Optica Publishing Group
Original Publication: Washington, DC : Optical Society of America, 1997-
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Entry Date(s):
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Date Created: 20210716 Latest Revision: 20210716
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Update Code:
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20240105
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DOI:
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10.1364/OE.427734
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PMID:
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34265977
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Analyses based on quantum metrology have shown that the ability to localize the positions of two incoherent point sources can be significantly enhanced over direct imaging through the use of mode sorting. Here we theoretically and experimentally investigate the effect of partial coherence on the sub-diffraction limit localization of two sources based on parity sorting. With the prior information of a negative and real-valued degree of coherence, higher Fisher information is obtained than that for the incoherent case. Our results pave the way to clarifying the role of coherence in quantum-limited metrology.