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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Veröffentlicht in:	Physical review letters 2004-11, Vol.93 (21), p.213903.1-213903.4, Article 213903
Hauptverfasser:	ABOURADDY, Ayman F, STONE, Patrick R, SERGIENKO, Alexander V, SALEH, Bahaa E. A, TEICH, Malvin C
Format:	Artikel
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	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