Estudo experimental do cancelamento de aberrações ópticas através da correlação de intensidade

Abstract

In this doctoral thesis, we study the classical intensity correlation function of spatially incoherent beams with a phase aberration in the beam path. On the basis of our experimental measurements and in the optical coherence theory, we show that the effects of phase disturbances, independently of their kind and without need of coordinate inversion, can be canceled out if the same phase is aligned in the signal and reference beam path. We discuss the spatial coherence length of the speckles, showing their influence on the cancellation of the aberrations. These results can be useful for imaging and microscopy through random media.