METHOD FOR MEASURING LIGHT FLUX CORRELATION FUNCTION AND DEVICE FOR CARRYING OUT SAID METHOD

摘要

The invention relates to instrumentation engineering used for interferometry, spectroscopy and for holography. The inventive method consists in directing light fluxes in a parallel direction and towards each other, mixing and recording said fluxes by a photoreceiver comprising N>1 sensitive to interference photoelectric layers which are arranged in a perpendicular direction with respect to the light fluxes. Signals from the N photoelectric layers comprise a correlation function readings of the measured light fluxes whose reciprocal time-offset is defined according to the optical distance between each photoelectric layer and the sources of the first and second light fluxes, the digitalisation interval of the correlation function readings on the N outputs of the photoreceiver being defined according to the optical distances between the photoelectric layers and the first and second surfaces of said photoreceiver which are parallel to the photoelectric layers. Said invention makes it possible to simultaneously receive signals which comprise the correlation function readings of the counter light fluxes without mechanically scanning the path-difference thereof.