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The results indicate that the athermal refractive index changes observed in previous transient interferometric and diffraction grating experiments can be related to polarisability changes caused by the existence of strong UV charge transfer absorption bands. Film density and refractive index improve with higher substrate temperatures. To download this data or our MSDS safety data sheet as a pdf, please click on the links at the top of the page. Melting point: 1157°C. Thermal Evaporation of Ytterbium Fluoride (YbF 3). 1.Due to the high refractive index of BP (∼3), the material is not an effective antireflective coating for any common substrate. Refractive Index Standard at 20 °C 25 °C and 30 °C. If the file is not available for download, you can request our proprietary file by clicking "Request". layers with an adhesion promoter of medium refractive index in between (e.g. Ytterbium fluoride Molecular formula: YbF3 C A S: 13760-80-0 Physical properties: Boiling point: 2200 ℃, melting point: 1157 ℃, Uses: Due to the luminescent material, phosphor, an optical material. The table below contains links to refractive index data for common materials. Melting point (˚ C) 1400. An optical element includes a substrate and an infrared anti-reflective film. n = 3 × 108 m/s/1.5 × 108 m/s = 2. Oxyfluoride glasses doped with 2, 5, 8, 12, 16 and 20 mol% of ytterbium (Yb 3+) ions have been prepared by the conventional melt-quenching technique. Ytterbium Trifluoride (YbF3) nanoparticles are a source of ytterbium that is insoluble in water. films with a refractive index n ~ 1.47 – 1.48 at 550 nm and ~ 1.33 – 1.42 at 10 μm can be produced from BaF 2 granulate from boat or with e-gun. Pricing. Refractive index (theoretical) 1.53 Dispersion solid content Up to 70 wt.% depending on dispersion medium Dispersion medium Water, alcohol, polyol, acetone, methacrylate-based dental resin and customer specific monomer mixture Type of functionalization Depends on dispersion medium and application requirements Production Description Size mm Purity % Price, USD; 100g 500g; Y-201. 3-- ZnS, ZnSe, Ge . Thin films of Ge, ZnS, YbF3, and LaF3 produced using e-beam evaporation on ZnSe and Ge substrates were characterized in the range of 0.4–12 µm. 3, 174-177, 2001. Evaporation temperature (˚ C) 1400-1600. The refractive index of the medium is 2. Below are files of complete refractive index and extinction coefficients. Optical Coating Material 99 . Typical values YbF3 nano-dispersions Chemical formula YbF3 Crystal structure Orthorhombic Average Particle Size (nm) 20, 40 & 60 Density* (g/cm3) 8.2 Refractive index* 1.53 Dispersion solid content (wt.%) Depending on dispersion medium Up to 70 The type of functionalization provi-ded strongly depends on dispersion medium & application requirements. Refractive index and extinction coefficient values in the range of 0.6–12 m of a YbF 3 film evaporated at 250 as well as the results of the durability tests were reported in [26]. This white crystalline salt is useful because it is transparent over a wide range of wavelengths. Figures 2.3.8 and 2.3.9 show the relationship between the molecular weight of a solvent and its refractive index. Finally, we produced multi-layer reflection coating on a 260mm diameter mono-crystalline silicon substrate. Optical constants of Ag (Silver) Johnson and Christy 1972: n,k 0.188-1.94 µm. Refractive Index Standard at 20 °C 25 °C and 30 °C. Optical constants of Yb (Ytterbium) Larruquert et al. Thin films of Ge, ZnS, YbF3, and LaF3 produced using e-beam evaporation on ZnSe and Ge substrates were characterized in the range of 0.4-12 µm. Refractive Index Standard at 20 °C 25 °C and 30 °C. Factory Price 99.9% -99.999% Ybf3 Ytterbium Fluoride For Optical Glass,Coating,Luminescent,Phosphor , Find Complete Details about Factory Price 99.9% -99.999% Ybf3 Ytterbium Fluoride For Optical Glass,Coating,Luminescent,Phosphor,Ytterbium Fluoride,Ybf3,Ytterbium Fluoride Price from Supplier or Manufacturer-Shanghai Xinglu Chemical Technology Co., Ltd. These technologies are used in order to maintain, provide and improve our services on an ongoing basis, and in order to provide our web visitors with a better experience. GdF3 has a refractive index near 1.59 at 550 nm and 1.53-1.63 at 193 nm, but in most cases, is considered a candidate for below-UV or IR applications owing to its large bandgap energy. Film density and refractive index improve with higher substrate temperatures. From the results, we found the anode voltage of PIAD has a large effect on the residual stress of YbF3 thin film, and the refractive index of YbF3 produced with PIAD was higher than without it, with a possible reason close to packing density. WO3 evaporates at lower temperatures than other high-index materials for the VIS region, such as TiO2 and Ta2O5. The common rare earth fluoride are LaF3, CeF3, PrF3, NdF3, GdF3, DyF3, YF3, etc. O. Medenbach, D. Dettmar, R. D. Shannon, R. X. Fischer and W. M. Yen, Refractive index and optical dispersion of rare earth oxides using a small-prism technique, J. Opt. INTRODUCTION . Refractive index of YbF3 (Ytterbium trifluoride) - Amotchkina. 1. Name: Boon LEE Tel: +86 731 28824932 Fax: +86 731 28824932 Mobile: +86 17707416929 E-mail: info@jayuindustry.com Add: 119# Songjiaqiao,Hetang District, zhuzhou City, Hunan Province,China Skype: jayuoptical MSN: jayuoptical@hotmail.com QQ: 584861363 Optical constants of CeF 3 (Cerium trifluoride) Rodríguez-de Marcos et al. Book Page. To expand the transmission graphs, please click on the image. Match Criteria: Product Name. It can be incorporated into films, adhesives, encapsulation materials, optical structures, and components for a wide range of applications, including ophthalmic coatings, solid-state lighting and displays. For a typical sample of Diamond-like Carbon the refractive index and extinction coefficient at 632.8 nm are 2.22949 and 0. Shelf. In [29], YbF3/SiO2 Fillers as Radiopacifiers in a Dental Adhesive Resin. (or lower) refractive index than the surrounding medium the Becke line moves inwards (or out-wards). When used in multi-layer combination with ZnS or ZnSe film layers, the substrate temperature must be reduced to ~160° C to avoid the lowering the sticking coefficients (condensation rate) of those materials. The refractive index characteristics of YF 3 films are shown in Figures 1 and 2 for near-UV to short-wave IR wavelengths. Magnesium Oxide (MgO) Magnesium Oxide can be used for high temperature windows and substrates. It was found that the Sellmeier model provides the best fit for refractive indices of ZnSe substrate, ZnS, and LaF3 films; the Cauchy model provides the best fit for YbF3 film. also segregates materials according to their mean high-, intermediate, and low-refractive - indices within the spectral ranges of greatest usefulness, as limited by absorption. Multi-layers anti-reflection coating. YbF3. Match Criteria: Product Name. Refractive Index: 1.52 Transmission Range (µm) 0.22~12 Evaporation Source: W, Mo, Ta, E Application: IR Multilayer, A.R. Two beamsplitters operating across the near-infrared (770-1050 nm) and mid-infrared (4-8 µm) spectral ranges are developed. Yttrium Fluoride is insoluble, therefore making it suitable for humid conditions when applied hot. Adding Nb 2 O 5 to the glass composition or substituting phosphate by sulfate increases the non-linear refractive index, due to an enhanced asymmetry of the Yb 3+ sites resulting in larger cross sections for absorption and emission. Luminescence intensity white sintered granules. Figure 2.3.8 shows that there is a general tendency for the refractive index to increase as the molecular weight of the solvent increases. ... YTTERBIUM FLUORIDE PIECES , YbF3, 99.9% PURE, ~1-6MM PIECES, PRE-MELTED PIECES, 500 GRAMS 1mm - 6mm 500 g 99.90% White to Grey EVMYBF301-6MMPMT P.O.R. Refractive Index of MgF2, Magnesium Fluoride. Refractive Index Standard at 20 °C 25 °C and 30 °C. ytterbium fluoride. 1.08962. 2003: n,k 0.000730-0.207 µm. 350. Refractive Index of MgF2, Magnesium Fluoride. Effects of fixture rotation on coating uniformity for high-performance optical filter fabrication. The data also indicates that there must be an additional factor governing refractive index. the ratio of the speed of light in vacuum, c = 299792458 m/s, zilight® nanozirconia is the perfect nanofiller in advanced optical materials to significantly increase and tune the refractive index with limited impact on transparency. 99.99. Next Generation Hydrophobic Umicore's new hydrophobic materials of the "E"-line maintain the superior process and film properties known from Umicore Topcoat. The refractive index of BP and DLC coating in the infrared waveband was measured by Infrared Spectroscopic Ellipsometry. Product Description. Book Page. For a typical sample of MgF2 the refractive index … This method has been used successfully for determination of refractive indices of synthetic fibers (McLean, 1965) and aromatic polyimides (Simpson & St. Clair, 1997). It is a candidate high-index material for the VIS region. It is a candidate high-index material for the VIS region. Data [Expressions for n] [CSV - comma separated] [TXT - tab separated] [Full database record] Optical transmission calculator › BaF 2 source material from UMICORE exhibits no spitting and outgassing and is optimized with respect to low absorption. Evandro Piva. Thin films refractive index and extinction coefficient data were obtained by means of spectroscopic ellipsometry combined with spectrophotometry. Since germanium (Ge) first began to be developed for transistor and infrared (IR) optics applications in the late 1940s, the material quality has continually improved to meet increasingly stringent demands. ... YTTERBIUM FLUORIDE PIECES , YbF3, 99.9% PURE, ~1-6MM PIECES, PRE-MELTED PIECES, 500 GRAMS 1mm - 6mm 500 g 99.90% White to Grey EVMYBF301-6MMPMT P.O.R. The refractive index of DLC is about 2.0 and this makes it an ideal coating material for use as an anti-reflection coating when applied to higher index infrared optical materials. To expand the transmission graphs, please click on the image. The increased refractive indices and surface roughness of YbF3 films indicate that the film density and columnar structure size increase with deposition temperature. Many materials have a well-characterized refractive index, but these indexes often depend … ... from other fluoride compounds that have a similar index and low absorption, as well as the required mechanical durability properties: low intrinsic (tensive) stress, good hardness, and insolubility. Appearance: crystalline solid. It is available in submicron, ultra high purity and nanopowder forms. Thicknesses greater than 2 μm will adhere to Zinc Sulfide, glass, and Germanium substrates heated to 250°C. Using the Sellmeier dispersion model, the refractive index and thickness of the Zinc sulfide(ZnS) thin film were obtained by fitting the transmittance in the range of 2.5 μm–11 μm. CAS. … It was found that the Sellmeier model provides the best fit for refractive indices of ZnSe substrate, ZnS, and LaF3 films; the Cauchy model provides the best fit for YbF3 film. The speed of light in an unknown medium is 1.76 × 108 m/s. For the first time, the beamsplitters based on thin-film materials combinations of ZnS/YbF3 and Ge/YbF3 are investigated. Coating DOT Class: NR Part No. Pricing. Refractive Index Database. The table below contains links to refractive index data for common materials. Each material in the database has refractive index listed as a function of wavelength over a range typically required for thin-film thickness measurement. λ (nm) WE are offering our customers a wide range of YbF3 Ytterbium Fluorides, which are available with following specifications : Refractive Index 1.52at500nm Transmission Range 220i 12000nm Density 8.17g/cm3 Applications IR coatings,etc. The refractive index of the medium can be calculated using the formula: n = c/v. Thin film materials are high purity materials and chemicals such as precursor gases, sputtering targets, or evaporation filaments used to form or modify thin film deposits and substrates. It can be combined in multi-layers with higher-index ZnS, ZnSe and Ge layers and with other fluoride compounds. YbF 3 shows very low water absorption bands at 3 and 6 µm, even shallower than e.g. Ion beam sputtering is one of the most important technologies for preparing hafnium dioxide thin films. Transmission range (nm) 220-16000. EP2708922B1 EP13184280.9A EP13184280A EP2708922B1 EP 2708922 B1 EP2708922 B1 EP 2708922B1 EP 13184280 A EP13184280 A EP 13184280A … Optical glass. ... YbF3, LaF. Density: 8200 kg m -3. Abstract New type of optical material, BaF2:ZnF2:CdF2:YbF3 (1.1 at %) ceramics, contains two phases with different chemical compositions and different crystal structures.