Showing papers in "Optical Materials in 2014"

TL;DR: In this article, the authors made a full list of known Cr 3+ or Mn 2+ -activated compounds showing red to near-infrared persistent luminescence, which may be useful for further exploration of new compounds.

TL;DR: The dependence of scintillation properties on crystal structure and Al-Ga was discussed in this article, where the Czochralski (Cz) method was used to grow Gd 3 (Al 1 − x Ga x ) 5 O 12 (GAGG) single crystals with various Ga concentration of x ǫ = 2, 2.4 and 2.7.

TL;DR: An organic nonlinear optical crystal, 4-hydroxy-3methoxy-4′-N′-methylstilbazolium tosylate monohydrate (VMST) was grown from methanol:water mixed solvent by slow cooling method.

TL;DR: In this paper, the influence of Nd 3+ concentration on physical properties and optical properties of borate glass was examined using X-ray diffraction, Fourier transformed infrared (FTIR), UV-Vis-NIR absorption and Photoluminescence (PL) spectroscopic characterizations.

TL;DR: In this paper, the optical properties of chromium doped AB 2 O 4 spinels were investigated for small animal in vivo imaging and it was shown that these traps are stable at room temperature and could be emptied by thermal or near infrared source, which makes these materials potential new optically photo storage compounds.

TL;DR: In this paper, a co-precipitation method was used to synthesize hexagonal wurtzite structures of nanoparticles with hexagonal lattice and the average crystal size was decreased from 27 to 22.7 nm when Ni concentration is increased from 0% to 2% due to the suppression of nucleation and subsequent growth of ZnO by Ni doping.

TL;DR: In this paper, an extremely wide spectral range from 181 to ∼54000 cm −1 has been explored for ethylene glycol in the liquid phase, and optical constants in the whole range have been given.

TL;DR: In this article, a terbium molybdate micro-crystalline structure β-Tb2(MoO4)3 has been refined by Rietveld method in space group Pba2.

TL;DR: In this article, a series of Ba 3 Lu(PO 4 ) 3 : Eu 3+ phosphors were synthesized by high-temperature solid-state method, and their UV-vis luminescent properties were investigated.

TL;DR: In this article, a study of mid-infrared photoluminescence in the wavelength range 3.5-5.5μm emitted from Pr3+: GeAsGaSe core/GeAsGaSE cladding chalcogenide fiber is presented.

TL;DR: In this article, the decay of the 4F9/2 excited level is found to be single exponential for lower concentration and become non-exponential for higher concentration, and the nonexponential behavior arises due to the efficient energy transfer between the Dy3+ ions through various non-radiative relaxation channels.

TL;DR: In this paper, the deacetylation of chitin was carried out in aqueous sodium hydroxide and the results of the adsorption of organic pesticide 2,4-dichlorophenoxyacetate (2.4-D) were described by Langmuir-type and Freundlich-type isotherm.

TL;DR: In this paper, the authors give an overview of the recent progress in a specific class of host materials, namely oxynitride and nitride persistent phosphors, which are interesting hosts to explore because of their unique characteristics, such as chemical stability and tunability of the emission over the entire visible range upon doping with divalent europium.

TL;DR: In this paper, HfO2 films were characterized by studying their growth behavior, microstructure, and optical properties, and a correlation between growth conditions, micro-structure and optical constants is established.

TL;DR: In this article, structural and optical properties of Co (0, 3, 5 and 7 mol%) doped TiO2 (titania) nanoparticles (NPs) synthesized by employing acid modified sol-gel method are reported.

TL;DR: In this paper, the luminescence spectra of silver molecular clusters in photo-thermo-refractive glasses are investigated in detail before and after the UV irradiation and also after the heat treatment of the samples.

TL;DR: In this paper, structural and optical properties of Mg doped ZnO nanoparticles prepared through sol-gel method using polyvinyl alcohol as chelating agent were reported.

TL;DR: In this article, the measurements of pulse height spectra, radioluminescence spectra at various temperatures between 10 and 325 K, and low temperature thermoluminecence glow curves of Gd 3 Al 2 Ga 3 O 12 :Ce.

TL;DR: In this paper, the properties of metal-semiconductor-metal (MSM) photoconductive UV detectors based on Sb-doped ZnO thin films were reported.

TL;DR: In this paper, a study of the broadband near-infrared emission in Pr3+ single doped and Yb3+ codoped tellurite-tungstate glasses for optical amplification is presented, showing that changing the pump wavelength is possible to select the 1D2-1G4 or the 1G4-3H5 transition, displacing the emission band from ∼1480 to ∼1330

TL;DR: In this paper, a transparent willemite, Zn 2 SiO 4 (ZS) glass-ceramic nanocomposites were prepared from melt-quench derived ZnO-Al 2 O 3 -B 2 O3 -SiO 2 (ZABS) precursor glass by an isothermal heat-treatment process.

TL;DR: In this article, the crystal structure and luminescence properties of Mn4+-doped phosphors for white LEDs were investigated, and the influence of crystal field to luminous intensity was discussed.

TL;DR: In this paper, the bulk growth of P-nitroaniline (PNA) single crystals by slow evaporation solution technique using methanol as a solvent at 300 K was presented.

TL;DR: Au doped ZnO (ZnO:Au) nanostructures were synthesized by ultrasound assisted wet chemical method as mentioned in this paper, which showed the formation of nanorods having wurtzite structure and c-axis orientation.

TL;DR: In this article, the growth and optical properties of amorphous zinc oxide (ZnO) thin films have been investigated in the spectral range of 190-1100nm and showed a high transmissivity (80-99%) and low absorptivity (

TL;DR: In this article, the luminescence properties of the yellow pigment BiMg2VO6 were revisited and those of the trivalent lanthanide dopants were described.

TL;DR: In this article, a prototype Glan-Taylor polarizer made of Ba2Na3(B3O6)2F prisms was fabricated, which showed high transparency and large optical extinction ratio similar to the commercial birefringent crystal α-BBO.

TL;DR: In this article, the subsurface defects characteristics of HF-etched fused silica optics and their effects on laser induced damage were investigated, and a good correlation between optical thermal absorption and laser-induced damage performance was shown.

TL;DR: In this article, a series of naphthalimide derivatives were designed and synthesized by substituting electron-donating phenoxy groups at the 4th position of 1,8-naphalimide.

TL;DR: In this paper, the effect of Eu3+ concentration on 5D0 level lifetime was studied and the processes resulting in the relaxation of excited state (5D0) were discussed and the probabilities of radiative and nonradiative processes were calculated using the model of f-f transition intensities.