Due to their potential for long coherence times, dopant ions have long been considered promising candidates for scalable solid state quantum computing. However, the demonstration of a universal set of quantum logic operations using dopant ions has proven to be problematic, largely due to the difficulty of addressing closely spaced ions. Here we use optically active ions and frequency addressing...

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It is well-known that many natural fluorite crystals contain rare earth ions. In this work, a series of pink fluorites studied to demonstrate the use Raman microscopes allows obtain high resolution emission spectra trivalent These allow in principle distinguish differences local environment related charge compensation necessary when divalent Ca ion replaced by ion. The from Alps have grown unde...

Thermometers whose emission color gradually changes with temperature are called chameleon emitters. In this study, we discuss the mechanism of the thermosensitivity of the emission color of polymers that contain two lanthanides (Ln3+), e.g., [Tb0.99Eu0.01(hfa)3(linker)] n , where the Ln3+(hfa)3 complexes (hfa: hexafluoro acetylacetonato) are connected by a phosphine oxide "linker" molecule. Fir...

The photoluminescence spectra and luminescence lifetimes of Eu3+-doped oxyhalides, YOX:Eu3+ (X = Cl or Br), their temperature dependence on different halide species mixed-anion coordinations were investigated analyzed. In terms the ionic covalent nature bonding, Eu3+ ions form coordination polyhedra in isostructural YOCl YOBr hosts: a ninefold [Eu3+O4Cl5] an eightfold [Eu3+O4Br4] polyhedra. Jud...

In this paper, Zn2SiO4:xEu3+ phosphors were synthesized with different concentrations of Eu3+ ions (x = 1, 3 and 5 wt.%) by using waste bottle glasses as silicate source. The structure, morphology, and luminescent properties of the phosphors were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and photoluminescence (PL) spectroscopy. The XRD ana...

The structure of nanocrystalline Y2O3:Eu prepared by a combustion reaction was analyzed by XRD and high-resolution electron microscopy. Compared with a large-scale particles, 5-nm Y2O3:Eu particles presented as distorted crystallite and rough surfaces. Luminescent and absorption properties of nano-Y2O3:Eu showed remarkably particle size effects. At Y2O3:Eu particle sizes smaller than 10 nm some...