Large-sized Er3+/Y3+ co-doped tellurite glasses with high
image quality were prepared by a conventional melt-quenching method
for volumetric three-dimensional display. The effects of the
concentration of Er3+ and Y3+ on the two-frequency upconversion
luminescence properties and volumetric three-dimensional display were
investigated. Under dual-wavelength excitation at 850 nm and
1550 nm, the two-frequency two-step upconversion luminescence
intensity at 546 nm in the Er3+/Y3+ co-doped tellurite glass was
significantly enhanced by about 44% compared with that in the Er3+ doped tellurite glass. However, the
upconversion luminescence mechanism and its dynamic process were
further obtained. A range of the high-resolution and high-contrast
volumetric three-dimensional images can be achieved in the Er3+/Y3+ co-doped tellurite glass with optimal
doping concentration, utilizing a coordinated control system of
galvanometer scanner and digital micro-mirror devices. The results
indicate that Er3+/Y3+ co-doped tellurite glass has
promising potential for widely volumetric 3D
displays.