3-D HOLOGRAPHIC RECORDING METHOD AND 3-D HOLOGRAPHIC RECORDING SYSTEM

摘要

A method of 3-D holographic recording on a photosensitive material capable of a multi-photon exposure by using a very simple optical system and by means of a femto-second laser pulse, wherein a femto-second laser pulse is divided into a plurality of light fluxes by a diffraction beam splitter (3), four light fluxes out of divided laser are condensed and applied to a sample (7) consisting of a photosensitive material capable of a multi-photon exposure, four light fluxes are interference-exposed to induce the multi-photon absorption of the sample (7), and a Bragg diffraction lattice is recorded on the irradiated portion of the sample (7).