Abstract: A microscopic image of an object is formed by illuminating the object with light through an array of nano antenna elements and imaging a combination of the object and the array in a detection plane wherein substantially a Fourier image of the combination is formed. Image information is retrieved from the detection plane for a plurality of scanning points of the object relative to the antenna array The microscopic image of the object is formed from the retrieved image information as a function of scanning point, for example based on differences between intensities in different quadrants in the Fourier plane.