A ghost imaging scheme is used to observe the diffraction pattern of a pure phase object . It is observed that when increasing the spatial coherence the diffraction pattern disappeared from the cross-correlation, while it appeared in the autocorrelation. The cross-correlation contains information about the phase object only when the light is spatially incoherent.
Coherent imaging of a pure phase object with classical incoherent light
Brambilla E.;Ferri F.;Lugiato L. A.
2007-01-01
Abstract
A ghost imaging scheme is used to observe the diffraction pattern of a pure phase object . It is observed that when increasing the spatial coherence the diffraction pattern disappeared from the cross-correlation, while it appeared in the autocorrelation. The cross-correlation contains information about the phase object only when the light is spatially incoherent.
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