The hologram (from the Greek “holos”, whole, and “gram”, something
written) is a three-dimensional photograph using the interference produced by
the superimposition of two laser beams. Dennis Gabor (Great Britain, b. Hungary) discovered the principle of
holography in 1948 in the course of his research into electronic microscopy.
But it was not until the discovery of the laser that practical applications could
be developed.
E.N. Leith, J.U. Upatnieks and C.W. Stroke (all U.S.) of the
University of Michigan carried out the first tests in 1963. Since then,
holography has developed greatly in the spheres of research, industry and art. The first examples of holography
applied to art were achieved by Prof. Youri Denisyouk (U.S.S.R.) who, toward the
end of the 1960s, applied holography to the reproduction of works of art. (‘Inventions
and Discoveries’)