HOLOGRAPHIC RECONSTRUCTION APPARATUS, HOLOGRAPHIC RECORDING/RECONSTRUCTION APPARATUS, AND HOLOGRAPHIC RECONSTRUCTION METHOD

摘要

A holographic reconstruction apparatus is provided. The holographic reconstruction apparatus reconstructs recording data recorded on a holographic recording medium from diffracted light generated by emitting reference light from a laser light source to the holographic recording medium. The apparatus includes a spatial light modulator applying spatial modulation on a light beam to form a predetermined reference light pattern for generating the reference light; an array optical detector detecting the luminance of a reconstructed image generated by the diffracted light and generating reconstruction data based on the luminance; and a controller controlling the spatial light modulator to form, as the predetermined reference light pattern, a first reference light pattern and a second reference light pattern, which is a reversal of the first reference light pattern, and reconstructing the recording data on the basis of after-calculation reconstruction data according to a difference between first and second reconstruction data based on the first and second reference light patterns.