Sampling complex-valued incoherent fourier spectra

We address the general case of sampling the Fourier spectrum of an incoherent object by extending the possibilities of the computerized optical sampler described in a previous paper. Because such a spectrum is hermitian, pairs of sampling slits are still used as pupils of an imaging system; but we take advantage of multiple measurements performed in the image plane for computing the amplitude and phase of each spectral component. The principle of multiplexed measurements within a given frequencies band, using a white light source, is suggested as a conclusion.