1. An interferometry method comprising the steps of: illuminating an object at an illumination frequency to create interference patterns; sampling the interference patterns at a sampling frequency that is a multiple of the phase shift of the object, whereby the sampled interference patterns are collected at different phase angles; reconstructing the wavelength and the phase angle of the illumination frequency as a function of the sampled interference patterns; changing the illumination frequency and repeating the preceding steps; and creating an image of the object as a function of the collected and reconstructed complex information.