Transparent volumetric three-dimensional image display based on the luminescence of a spinning sheet with dissolved Lanthanide(III) complexes.

We have developed a new type of transparent volumetric three-dimensional (3D) image display in which a thin photopolymer sheet containing Lanthanide(III) complexes is used as a rotational screen. The Lanthanide(III) complexes used in our system are Eu(TTA)(3) Phen, designed for achieving red luminescence (615nm) for an excitation light of 395 nm. An arbitrary luminous point (voxel) is identified by controlling the excitation laser beam direction in synchronization with the photopolymer sheet rotation. The full colorization of the proposed volumetric 3D image display can be realized by using, for example, Eu(TTA)(3) Phen, Tb(ACAC)(3) Phen, and Coumarin 337, simultaneously.