Abstract

The paper presents a new interpretation of the Talbot array illuminator (TAIL). According to our description the TAIL is equivalent to a sum of mutually shifted lenses modified by generalized pupil functions. The interpretation underlines the imaging abilities of TAILs and makes it possible to characterize an imaging process in a way based on the theory of the thin lens. The paper analyses the impulse response and the transfer functions corresponding to the image formation in spatially coherent and incoherent cases of illumination. Additionally we discuss the resolution of images created by the TAIL. The obtained theoretical results are verified experimentally.

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