Entangled-photon imaging of a pure phase object

We demonstrate experimentally and theoretically that a coherent image of a pure phase object [implemented by a microelectromechanical system (MEMS) micromirror array] may be obtained by use of a spatially incoherent illumination beam. This is accomplished by employing a two-beam source of entangled...

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Bibliographic Details
Published in:Physical review letters 2004-11, Vol.93 (21), p.213903.1-213903.4, Article 213903
Main Authors: ABOURADDY, Ayman F, STONE, Patrick R, SERGIENKO, Alexander V, SALEH, Bahaa E. A, TEICH, Malvin C
Format: Article
Language:English
Subjects:
Classical and quantum physics: mechanics and fields
Exact sciences and technology
Foundations, theory of measurement, miscellaneous theories (including aharonov-bohm effect, bell inequalities, berry's phase)
Fundamental areas of phenomenology (including applications)
Nonclassical field states
squeezed, antibunched and sub-poissonian states
operational definitions of the phase of the field
phase measurements
Nonlinear optics
Optics
Parametric down conversion and production of entangled photons
Physics
Quantum mechanics
Quantum optics
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Summary:We demonstrate experimentally and theoretically that a coherent image of a pure phase object [implemented by a microelectromechanical system (MEMS) micromirror array] may be obtained by use of a spatially incoherent illumination beam. This is accomplished by employing a two-beam source of entangled photons generated by spontaneous parametric down-conversion. One of the beams probes the phase object while the other is scanned. Though each of the beams is, in and of itself, spatially incoherent, the pair of beams exhibits higher-order interbeam coherence.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.93.213903