Device for placing in memory of an image coherent in a multimode optical cavity

摘要

The invention relates to a device for placing in memory of an image coherent in a multimode cavity. / p & & p & the optical device according to the invention uses an interaction medium 1, in which a network of phase of photoinduced is recorded permanently. This medium is, for example, a photorefractive medium. A first wave s which is an object wave passing through the cavity interfere with a second wave r of the pump in order to allow a transfer of energy of the second pumping wave r towards the first wave s / p & & & p & the invention applies in particular in the specification and the treatment of an optical image coherent.