A glass substrate for a high-frequency device, which contains, in terms of mole percent on the basis of oxides: 40 to 75% of SiO.sub.2; 0 to 15% of Al.sub.2O.sub.3; 13 to 23% of B.sub.2O.sub.3; 2.5 to 11% of MgO; and 0 to 13% of CaO, and having a total content of alkali metal oxides in the range of 0.001-5%, where at least one main surface of the glass substrate has a surface roughness of 1.5 nm or less in terms of arithmetic average roughness Ra, and the glass substrate has a dielectric dissipation factor at 35 GHz of 0.007 or less.

A glazing that has a solar control property includes at least one glass substrate on which a stack of layers is deposited. The stack includes at least one layer consisting of an alloy comprising nickel, copper and chromium, in which alloy the atomic percentage of nickel is greater than 70% and less than 94%, the atomic percentage of copper is greater than 5% and less than 25% and in which the atomic percentage of chromium is greater than 1% and less than 15%.

The present invention relates to a nano bi-material, electromagnetic spectrum shifter based on said nano bi-material and method to produce said electromagnetic spectrum shifter using said nano bi-material. In particular, the present invention provides nano bi-material based electromagnetic spectrum shifter, e.g. color filters, with a wide range of transmission and color tunability and methods to produce said color filters. The present invention has applications in color filtration and production of color filters; reflector and production of reflectors; and electromagnetic spectrum shifter and production of electromagnetic spectrum shifters.

An electronic device may include electrical components and other components mounted within a housing. The device may have a display on a front face of the device and may have a glass layer that forms part of the housing on a rear face of the device. The glass layer and other glass structures in the electronic device may be provided with coatings. An interior coating on a glass layer may include multiple layers of material such as an adhesion promotion layer, thin-film layers of materials such as silicon, niobium oxide and other metal oxides, and metals to help adjust the appearance of the coating. A metal layer may be formed on top of the coating to serve as an environmental protection layer and opacity enhancement layer. In some configurations, the coating may include four layers.

An improved glazing unit including a glass panel which is low in reflectance for RF radiation, a coating system which is high in reflectance for RF radiation disposed on the glass panel and creating onto the glazing unit a dual band bandpass filter. The glazing unit further includes at least one frequencies selective decoated portion of the coating system extending along a plane, P; having a width, DW, and a length, DL. The at least one frequencies selective decoated portion features a first decoated element with a plurality of unit cells, and a plurality of second decoated elements where a second decoated element is placed in a unit cell of the first decoated element, but no second decoated element is in contact with the first decoated element and at least one unit cell of the first decoated element has no second decoated element.

Method and apparatus for producing metal-coated optical fiber involves feeding a length of glass fiber through a first solution bath so as to plate a first predetermined metal on the glass fiber via electroless deposition. The length of glass fiber is passed continuously from the first solution bath to a second solution bath adapted to plate thereon a second predetermined metal via electrolytic plating such that the optical fiber contacts an electrode only after at least some of the second predetermined metal has been applied. The length of glass fiber may be passed continuously from the second solution bath to a third solution bath adapted to plate thereon a third predetermined metal via electrolytic plating.

The disclosure relates to a metal nanowire structure. The metal nanowire structure includes a substrate and a metal nanowire film located on the substrate. The metal nanowire film includes a number of first metal nanowires parallel with and spaced from each other. A width of each of the plurality of first metal nanowires is in a range from about 0.5 nanometers to about 50 nanometers. Each of the plurality of first metal nanowires is a solid structure and consists of metal material.

A glass substrate for a high-frequency device, which contains, in terms of mole percent on the basis of oxides: 40 to 75% of SiO.sub.2; 0 to 15% of Al.sub.2O.sub.3; 13 to 23% of B.sub.2O.sub.3; 2.5 to 11% of MgO; and 0 to 13% of CaO, and having a total content of alkali metal oxides in the range of 0.001-5%, where at least one main surface of the glass substrate has a surface roughness of 1.5 nm or less in terms of arithmetic average roughness Ra, and the glass substrate has a dielectric dissipation factor at 35 GHz of 0.007 or less.

A glass-ceramic containing: glass containing Si, B, Al, and Zn; crystal phases of SiO.sub.2, ZnAl.sub.2O.sub.4, and Al.sub.2O.sub.3; and an aggregate, wherein, with respect to a weight of the glass-ceramic, a content of the glass is 45% by weight to 80% by weight and, as the aggregate, a content of SiO.sub.2 is 20% by weight to 50% by weight, a content of Al.sub.2O.sub.3 is 20% by weight or less, and a content of ZnO is 10% by weight or less.

A method of making a wireless charging device for an electronic device includes printing a decoration layer on a surface of a glass or glass-ceramic substrate using a non-conductive ink. A coil is printed on the decoration layer, and an electromagnetic interference absorber layer is applied over the printed coil.