Analysis of the possibility of upscaling based on apodization for partially coherent optical systems in the presence of aberrations

Abstract

Abstract The degree of coherence of radiation is an important characteristic on which the interference properties of light fields and, as a consequence, the resolution of optical systems depend. When propagating over long distances even in free space, initially completely coherent or incoherent radiation becomes partially coherent. This fact should be taken into account in the formation of optical images along with the influence of wave front aberrations. In this paper, we investigate the change in the resolution of the system for two near-point light sources depending on the degree of spatial coherence in the presence of different aberrations. The possibility of improving the resolution in the considered situations on the basis of the amplitude apodization of the optical system is also investigated.