Provided is a structural birefringence-type inorganic wave plate having excellent heat resistance and durability, and a fine pattern. Also provided is a manufacturing method for an inorganic wave plate by which, even in the case of a fine pattern, productivity is high, and a desired phase difference is easily achieved and stably obtained. This inorganic wave plate is obtained by utilizing a selective interaction between a polymer having a repeating unit containing a carbonyl group, and a metallic oxide precursor, the inorganic wave plate having a wire grid structure provided with a transparent substrate, and grid-shaped protruding portions arranged at a pitch shorter than the wavelength of light in a used band on at least one surface of the transparent substrate and extending in a predetermined direction, the main component of the grid-shaped protruding portion being a metallic oxide.

A method of processing a window member according to an embodiment includes applying a protective coating agent including at least one of a siloxane derivative and an inorganic sol compound onto a glass substrate, performing a heat treatment on the applied protective coating agent to form a protective layer on the glass substrate, thermoforming the glass substrate, and removing the protective layer, so as to process the window member without degradation of optical characteristics and without surface damages of the glass substrate.

Disclosed herein are graphene coatings characterized by a porous, three-dimensional, spherical structure having a hollow core, along with methods for forming such graphene coatings on glasses, glass-ceramics, ceramics, and crystalline materials. Such coatings can be further coated with organic or inorganic layers and are useful in chemical and electronic applications.

A method of making a laser mirror in which a mirror substrate has at least a one micron size nodular defect includes depositing a planarization layer over the mirror substrate and the nodular defect, depositing a layer of silicon dioxide over the planarization layer, and etching away a portion of the layer of silicon dioxide. The method also includes thereafter, depositing a layer of hafnium dioxide over the layer of silicon dioxide and repeating the steps of depositing a layer of silicon dioxide, etching away a portion of the layer of silicon dioxide, and depositing a layer of hafnium dioxide until the nodular defect is reduced in size a predetermined amount.

Described herein are glass substrates having oleophobic surfaces that are substantially free of features that form a reentrant geometry. The surfaces can include a plurality of gas-trapping features, extending from the surface to a depth below the surface, that are substantially isolated from each other. The gas-trapping features are capable of trapping gas below any droplets that are contacted with the surface so as to prevent wetting of the surface by the droplets.

Methods of etching an inorganic layer on a glass substrate are described, the methods comprising contacting the glass substrate including an inorganic layer with an etching solution comprising a polar organic solvent and an etchant, wherein the inorganic layer is removed at an inorganic layer etching rate and the glass substrate is etched as a glass etching rate.

A method for manufacturing a color slide for an automobile projection lamp includes: forming a plurality of same color pattern units on a glass substrate, each of the color pattern units being composed of a plurality of color coating layers. The plurality of color coating layers are formed by sequentially depositing materials having different colors on a surface of the glass substrate in accordance with different colors. Finally, the glass substrate is cut and separated in unit of one color pattern unit to form an independent color slide with the color pattern. The color slide can be mounted to an automobile projection lamp system for projecting the color pattern.

A system includes a window and a microwave amplifier positioned proximate the window. The window has a low-E coating. The microwave amplifier includes a substrate and multiple concentric rings of material that form a Fresnel zone plate lens. The concentric rings are attached to the substrate. The Fresnel zone plate lens is configured to focus an attenuated microwave signal, which is attenuated by the low-E coating of the window, on an antenna, which may (1) amplify the attenuated microwave signal by at least 20 dB and/or (2) provide an image at the antenna such that an area of the Fresnel zone plate lens divided by an area of the image is at least 100 and/or such that the area of the image is approximately equal to an area of the antenna. The attenuated microwave signal has a designated frequency in a range of frequencies from 6 GHz to 80 GHz.

A glass-based article includes a first major surface and a first compressive stress region extending to a first depth of compression from the first major surface. The glass-based article includes a second major surface including a first surface portion and one or more edge surface portions recessed from the first surface portion. The glass-based article includes a second compressive stress region extending to a second depth of compression from the first surface portion. Additionally, methods of manufacturing a glass-based article are disclosed.

An article having a nanostructured surface and a method of making the same are described. The article can include a substrate and a nanostructured layer bonded to the substrate. The nanostructured layer can include a plurality of spaced apart nanostructured features comprising a contiguous, protrusive material and the nanostructured features can be sufficiently small that the nanostructured layer is optically transparent. A surface of the nanostructured features can be coated with a continuous hydrophobic coating. The method can include providing a substrate; depositing a film on the substrate; decomposing the film to form a decomposed film; and etching the decomposed film to form the nanostructured layer.