INTERFEROMETRE HOLOGRAPHIQUE NUMERIQUE POUR ANALYSER UN MILIEU TRANSPARENT

摘要

The interferometer (100) has an optical channel separator (4) adapted to direct a first portion of laser beams (Ba-Bc) to a mirror (5) and to simultaneously direct a second portion of each laser beam along an optical path to a measuring field (C). Distance (d) between poles (P1, P2) of the first and second portions of each laser beam is varied with movement of the first mirror, where the variation in distance causes change in a non-intensity modulation in a holographic monochrome image. An independent claim is also included for a method for analyzing spatial distribution of light refractive index of a transparent medium.