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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
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Superresolution Limits from Measurement Crosstalk.

Manuel Gessner1, Claude Fabre1, Nicolas Treps1

  • 1Laboratoire Kastler Brossel, ENS-Université PSL, CNRS, Sorbonne Université, Collège de France, 24 Rue Lhomond, 75005, Paris, France.

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|September 21, 2020
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Summary
This summary is machine-generated.

Crosstalk in superresolution imaging limits precision, degrading performance with more detected photons. Even small crosstalk reduces the ability to distinguish fine details compared to ideal measurements.

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Area of Science:

  • Optical imaging
  • Quantum metrology

Background:

  • Superresolution imaging surpasses diffraction limits using spatial mode decomposition.
  • Real-world measurement devices exhibit crosstalk, impacting accuracy.

Purpose of the Study:

  • To investigate the impact of crosstalk on superresolution imaging precision.
  • To determine how crosstalk affects the scaling of precision with photon number.

Main Methods:

  • Statistical and analytical tools were employed.
  • A device-independent model was used to analyze precision limits.
  • The study focused on weak, generic crosstalk.

Main Results:

  • Any non-zero crosstalk causes a breakdown of superresolution for large photon numbers (N).
  • Precision limit scaling changes from N^{-1/2} (ideal) to N^{-1/4} with crosstalk.
  • Crosstalk probability and photon number dictate precision limits.

Conclusions:

  • Crosstalk fundamentally limits superresolution imaging performance.
  • Understanding crosstalk is crucial for designing high-precision optical measurement devices.