title: Real-time three-dimensional object reconstruction by use of a phase-encoded digital hologram.
abstract: A three-dimensional (3D) object reconstruction technique that uses only phase information of a phase-shifting digital hologram and a phase-only spatial-light modulator is proposed. It is well known that a digital hologram can store both amplitude and phase information of an optical electric field and can reconstruct the original 3D object in a computer. We demonstrate that it is possible to reconstruct optically 3D objects using only phase information of the optical field calculated from phase-shifting digital holograms. The use of phase-only information enables us to reduce the amount of data in the digital hologram and reconstruct optically the 3D objects using a liquid-crystal spatial light modulator without optical power loss. Numerical evaluation of the reconstructed 3D object is presented.
authors.affiliation: Institute of Industrial Science, University of Tokyo, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Matoba
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Naughton
authors.forename: Yann
authors.initials: Y
authors.lastname: Frauel
authors.forename: Nicolas
authors.initials: N
authors.lastname: Bertaux
authors.forename: Bahram
authors.initials: B
authors.lastname: Javidi