Showing papers in "Optical Materials in 2016"

TL;DR: In this article, the electronic and optical properties of π-conjugated systems were evaluated by UV-Vis spectroscopy in CHCl3 solution for a large number of relevant πconjugation systems: tris-8-hydroxyquinolinatos (Alq3, Gaq3 and Inq3); oligoacenes (naphthalene, anthracene, tetracene and rubrene); oligothiophenes (α-2T, β-2t, α-3T,β-4T and α-

TL;DR: In this article, the real refractive index n of ethanol and isopropanol was calculated by applying the Kramers-Kronig theory to the experimentally obtained k spectrum over an extremely wide spectral range.

TL;DR: In this article, a plasmonic perfect absorber (PA) with response polarization independent in infrared region, which can be served as a sensor for enhanced refractive index sensing is presented.

TL;DR: In this paper, the homo-self-templated buffer layer was introduced for the gallium oxide thin film growth, and accordingly the FWHM of the on-axis (2 ¯ 0 1 ) β-Ga2O3 diffraction peak of the X-ray diffraction rocking curve was reduced from 1.9° to 0.5°.

TL;DR: In this paper, the phonon side band (PSB) spectra and decay time of lead fluorosilicate (SPbKNLFEu) glasses were used to predict the radiative properties for the emission levels of Eu3+ ions.

TL;DR: In this paper, one-dimensional photonic crystals (1DPCs) based on ZnS/Ge for compatible stealth of infrared and visible were firstly proposed theoretically and investigated experimentally.

TL;DR: In this paper, a smooth ridge waveguide fabricated on 700 nm thickness thin film lithium niobate (TFLN) is presented, which has been done by developing and optimizing three steps of the technological process, the mask fabrication, the plasma etching, and a final cleaning wet etching step in order to remove the lithium Niobate redeposition on the side walls.

TL;DR: In this paper, the fabrication of metal-semiconductor-metal ultraviolet photodetector based on catalyst-free growth of ZnO nanowire networks on ITO seeds/glass substrates by thermal evaporation method was reported.

TL;DR: In this paper, the dependence of the crystallite size and the band tail energy on the optical properties, particle shape and oxygen vacancy of different ZnO nanostructures to catalyse photocatalytic degradation was investigated.

TL;DR: In this article, a one-step solvothermal method for synthesizing GQDs with the application of hydrogen peroxide in N, N-Dimethylformamide (DMF) environment, which completely avoids the use of concentrated sulphuric acid and nitric acid to treat raw material and introduces no impurity in whole preparation process simultaneously for the first time.

TL;DR: In this paper, structural and optical properties of Er3+/Yb3+ codoped CaWO4 phosphors are explored using XRD and Raman technologies, and the upconversion emission has been investigated with 980nm excitation.

TL;DR: In this paper, a semiorganic nonlinear optical single crystals of Lithium nitrate oxalate monohydrate (LNO) were grown by slow evaporation solution technique.

TL;DR: In this article, the authors developed Li 2 O-Gd 2 O 3 -Bi 2 O3 -B 2O 3 -B2O 3 glass doped with different concentration of Dy 3+ ions by melt quenching technique for different applications in photonics and laser devices.

TL;DR: In this article, the authors evaluated the effect of Tb 3+ -doped zinc phosphate glasses of composition in mol%: (100.0 − x )Zn(PO 3 ) 2 − x Tb 2 O 3, x ǫ = 0.6, 1.0, 2.0 and 5.0.

TL;DR: In this article, the authors used natural dye extracted from petals of male flowers Luffa cylindrica L. as sensitizer for TiO 2 based dye-sensitized solar cells.

TL;DR: In this paper, a photoexcited switchable perfect metamaterial absorber/reflector for terahertz waves was proposed based on a cross-shaped structure (CSS) integrated semiconductor photoconductive silicon (Si).

TL;DR: In this article, the authors review the reports of Q-switched and mode-locked pulsed laser using transition metal dichalcogenides (TMDs) based SAs.

TL;DR: In this article, a series of Dy3+ ions doped Single and Mixed Alkali Fluoro Tungsten Tellurite Glasses have been prepared by using melt quenching technique and their spectroscopic behaviour was investigated by using XRD, optical absorption, photoluminescence and lifetime measurements.

TL;DR: In this article, the authors investigated the energy transfer efficiency between Tb 3+ and Yb 3 + ions in silica-hafnia waveguides and showed that the latter is more efficient since it combines the good optical properties of glasses with the optimal spectroscopic properties of crystals activated by luminescent species.

TL;DR: In this article, a series of color-tunable and white light emitting phosphors BaY2Si3O10:Tm3+,Dy3+ were synthesized by a high temperature solid-state reaction, and their phase structure, photoluminescence properties, and energy transfer processes between rare-earth ions were investigated in detail.

TL;DR: In this paper, a photo-excited broadband tunable metamaterial absorber for use in the terahertz region is demonstrated, which consists of a hybrid metal-semiconductor square split ring and a metallic ground plane that are separated by a dielectric resonator spacer.

TL;DR: In this paper, the dual energy transfer including energy transfer between Sm 3+ -Sm 3+ pairs and Sm 3 + -non-bridging oxygen (NBO) intrinsic defects were investigated.

TL;DR: In this article, a study of the optical properties of Nd 3+ ion in TeO 2 -PbF 2 -AlF 3 glasses has been carried out for different Nd3+ concentrations.

TL;DR: In this article, the effect of doping concentration on the luminescence behavior of yttrium oxide (Y2O3) europium (Eu) doped nanoparticles were investigated by co-precipitation method.

TL;DR: In this paper, the electronic polarisability of tetrahedral binary semiconductors has been studied using a recently proposed empirical relationship for refractive index from energy gap. And the proposed empirical relation has also been used to calculate the electronic polarity of some ternary compounds.

TL;DR: In this article, the properties of PbO-GeO2 glasses containing neodymium ions (Nd3+) and silver nanoparticles (NPs) were investigated.

TL;DR: In this paper, the effects of hydrostatic pressure, temperature, and magnetic field on the nonlinear optical rectification and second-harmonic generation in asymmetrical Gaussian potential quantum well have been investigated theoretically.

TL;DR: In this article, a simple rapid synthesis of Er doped ZnO nanoparticles by simple combustion method was reported, which were used as photocatalyst for photodegradation of direct red 31 (DR-31) dye.

TL;DR: GdY(MoO4)3:RE3+ (RE = Eu, Dy, Sm, Tb) phosphors were synthesized via a Pechini-type sol-gel process as discussed by the authors.

TL;DR: In this article, a double perovskite Li 3 Mg 2 NbO 6 :Mn 4+ deep red-emitting phosphor is synthesized by solid-state reaction method in air.