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Direct measurement of the two-point field correlation function

1996; Optica Publishing Group; Volume: 21; Issue: 21 Linguagem: Inglês

10.1364/ol.21.001783

1539-4794

C. Iaconis, Ian A. Walmsley,

Orbital Angular Momentum in Optics

The space-shift-variant two-point correlation function of a transversely spatially localized optical field of arbitrary coherence at a remote plane is measured with a novel interferometric technique. The method permits reconstruction of the correlation function by a simple resorting of the measured data. In the case of a coherent field the experimentally measured correlation function is shown to factorize, as expected, and the field amplitude and phase are also reconstructed.