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"Two-Photon" coincidence imaging with a classical source.

Ryan S Bennink1, Sean J Bentley, Robert W Boyd

  • 1The Institute of Optics, University of Rochester, Rochester, New York 14627, USA. bennink@optics.rochester.edu

Physical Review Letters
|September 13, 2002
PubMed
Summary
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Coincidence imaging can be achieved using classical light sources, not just quantum entanglement. This technique, however, cannot image phase-only objects with a bucket detector setup.

Area of Science:

  • Optics
  • Quantum Optics
  • Image Processing

Background:

  • Coincidence imaging extracts information from correlated photon statistics between a reference and test system.
  • Recent claims suggested that quantum entangled sources are essential for coincidence imaging.

Purpose of the Study:

  • To investigate the necessity of quantum entanglement for coincidence imaging.
  • To demonstrate coincidence imaging using a classical light source.
  • To identify limitations of coincidence imaging techniques with bucket detectors.

Main Methods:

  • Experimental demonstration of coincidence imaging using a classical correlated source.
  • Theoretical analysis of coincidence imaging principles.
  • Evaluation of imaging capabilities for phase-only objects.

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Main Results:

  • Coincidence imaging does not require quantum entanglement and can be implemented with classical sources.
  • An experimental setup successfully performed coincidence imaging using a classical source.
  • Coincidence imaging techniques employing a bucket detector in the test arm are fundamentally limited in imaging phase-only objects.

Conclusions:

  • Quantum entanglement is not a prerequisite for coincidence imaging.
  • Classical sources are sufficient for implementing coincidence imaging.
  • Bucket detector configurations in coincidence imaging prevent the imaging of phase-only objects.