<title>Influence Of Spatial And Temporal Coherence On Holography</title>

Abstract

This paper discusses the influence of temporal and spatial coherence of the light source, used in the holographic reconstruction process, on the quality of the image. This quality is estimated by the spread function of the holographic image of an object point, recorded with a coherent source. Different formulas are established successively for a punctual source with partial temporal coherence, a temporally coherent source of finite size and a self luminous source with temporal and partial spatial coherence. Numerical solutions show that, generally, the lack of spatial coherence is more drastic for the image quality.