Showing papers in "Optical Materials in 2011"

TL;DR: In this article, a transparent Ce:YAG ceramic phosphors were synthesized from the oxide powder which was produced by co-preparation method of the hydroxides.

TL;DR: In this paper, the authors report the monoclinic-MoO2 to orthorhombic -MoO3 transformation induced by continuous wave-laser irradiation.

TL;DR: In this paper, a series of red light emissive phosphors were prepared through solid-state reactions, and their luminescent properties were studied, and the influences of contents of Eu3+ and charge compensators on the luminescence properties were discussed.

TL;DR: In this article, structural and optoelectronic properties of BaThO3 cubic perovskite were calculated using all electrons full potential linearized augmented plane wave (FP-LAPW) method.

TL;DR: Eu 2+ 0.1, 0.5, 1, and 2-mol% doped LiCaAlF 6 single crystalline scintillators were grown by the micro-pulling down (μ-PD) method as mentioned in this paper.

TL;DR: In this article, the fluorescence intensity ratio (FIR) has been applied to the transitions 2H11/2 and 4S3/2 of Erbium and Neodymium ions.

TL;DR: In this paper, the authors demonstrate that transparent magnesium aluminate spinel ceramic possesses excellent thermo-optical properties, a record low absorption loss of 6πm/cm, and superior ruggedness which position it as a prime candidate for an exit window aperture for high energy laser systems, especially in hostile environments.

TL;DR: In this article, an energy schema for the Mn-doped ZnS nanoclusters was proposed to interpret the photoluminescence behavior. But the energy schema was not applied to the Mn 2+ ion-related PL spectra.

TL;DR: In this paper, the optical quality and the microstructure of Tb 3 Al 5 O 12 transparent ceramics were investigated and the Verdet constant was measured at 632.8 nm.

TL;DR: In this article, the electronic energy levels of the six-coordinated Mn 4+ ion in the pyrochlores Y 2 B 2 O 7 (B ǫ = Sn 4+, Ti 4+ ) have been computed using the exchange charge model of crystal field theory.

TL;DR: A series of single-phase full color phosphors, Dy 3+ -doped Li 2 SrSiO 4 :Dy 3+ was synthesized by a solid-state reaction method as discussed by the authors.

TL;DR: In this paper, the coordination and oxidation states of the doping transition metal ions were determined as a function of the optical basicity of the borate glasses, and the results showed that cobalt and nickel are present as divalent ions (Co 2+, Ni 2+ ) in octahedral coordination, but the tetrahedral coordination state of cobalt is also possible.

TL;DR: In this paper, the effect of Ni concentration on the structural, electrical, optical, and non-linear optical properties of the ZnO:Ni thin films was investigated using X-ray diffraction (XRD), profilometry and optical transmittance.

TL;DR: The PVA layer provided surface passivation of zinc oxide nanoparticles as discussed by the authors, and as a result of PVA coating, enhancement in ultraviolet emission and suppression of parasitic green emission was observed.

TL;DR: In this article, a new type of ZrF 4-based fluoride glass has been proposed for 2.7-μm laser diode, which has higher predicted spontaneous transition probability (29.04 s −1 ) along with larger calculated emission cross section (9.16 −10 −21 cm 2 ).

TL;DR: In this paper, the effect of Ga doping on the structural, electrical and optical properties of GZO thin films has been systematically investigated and a c-axis textured Ga-doped ZnO (GZO) film with the lowest resistivity of 3.6 × 10−4 cm and high visible transmittance of 90% has been achieved.

TL;DR: In this paper, the radioluminescence (RL) spectra of SrAl2O4 phosphor ceramics doped with individual trivalent rare earth element (REE) ions (Sm, Eu and Dy) are reported at the room temperature.

TL;DR: Er3+, Tm3+ and Yb3+ codoped gadolinium oxyfluoride nanoparticles were prepared in aqueous solution by a simple coprecipitation method, under alkaline conditions.

TL;DR: Ce3+-doped YAG garnet optical ceramic have been sintered at the Shanghai Institute of Ceramics in China to characterize dopant distribution in optical ceramics by combining optical spectroscopy and two spatially resolved techniques as imaging confocal microscopy and transmission electron microscopy.

TL;DR: In this paper, the growth of silver nano-particles embedded in an Erbium-doped tellurite glass with annealing time was studied, aiming to a photoluminescence enhancement.

TL;DR: In this article, an emission from 5D0,1,2,3 to 7F0, 1, 2, 3, 4 transitions of Eu3+ in CaSc2O4 upon 395nm excitation was reported.

TL;DR: In this article, the fluorescence properties of Sm3+-doped lead telluroborate glasses of composition PbF2.TeO2.H3BO3.

TL;DR: In this paper, the authors deal with the preparation, structural investigation and especially optical spectroscopy of the garnet family of oxide materials activated with trivalent lanthanide ions, in the nanocrystalline form.

TL;DR: In this article, an evolution of porosity and microstructure was observed during densification of lutetium oxide ceramics doped with europium (Lu2O3:Eu) fabricated via vacuum sintering and hot isostatic pressing (HIP)ing.

TL;DR: In this paper, a series of Eu3+ activated Li6Y1−xEux(BO3)3 (0.05 − 1.5 − 1) phosphors were synthesized by solid-state reaction method and the structures and photoluminescent properties of the phosphors are investigated at room temperature.

TL;DR: In this article, a self-assembled 3D flower-like NaY(MoO4)2:Eu3+ microarchitectures were successfully synthesized by a glycine-assisted hydrothermal method at 180°C.

TL;DR: In this paper, the main valence of Mo ions in the glasses was found to be Mo 6+ from X-ray photoelectron spectroscopy measurements, and the Raman bands observed at ∼860cm −1 and 950 cm −1 suggest that the coordination state of Mo 6 + ions in glasses is mainly (MoO 4 ) 2− tetrahedral units.

TL;DR: In this article, the authors evaluated the optical limiting properties and nonlinear refractive index of 2-aminopyridinium-succinatesuccinic acid (2APS) single crystal using continuous wave He-Ne laser excitation following Z-scan method.

TL;DR: In this article, high purity 75TeO 2 −25WO 3 glasses were produced by high-purity oxides mixtures melting in crucibles of gold or platinum in purified oxygen atmosphere.

TL;DR: In this paper, the authors reported on the synthesis of telluride glasses that have transmission far beyond the second atmospheric window and are stable enough toward crystallisation to be drawn into optical fiber.