Abstract: Light diffusing optical fibers for use illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including a scattering layer.

Abstract: A flow reactor for photochemical reactions comprises an extended flow passage (20) surrounded by one or more flow passage walls (22), the flow passage having a length and a light diffusing rod (30) having a diameter of at least 500 ?m and a length, with at least a portion of the length of the rod (30) extending inside of and along the flow passage (20) for at least a portion of the length of the flow passage (20).

Abstract: Disclosed herein are sealed devices comprising a first substrate, a second substrate, an inorganic film between the first and second substrates, and at least one weld region comprising a bond between the first and second substrates. The weld region can comprise a chemical composition different from that of the inorganic film and the first or second substrates. The sealed devices may further comprise a stress region encompassing at least the weld region, in which a portion of the device is under a greater stress than the remaining portion of the device. Also disclosed herein are display and electronic components comprising such sealed devices.

Abstract: A light-diffusing optical fiber having nanostructured inner and outer core regions is disclosed. The nanostructured inner core region is defined by a first configuration of voids that defines a first amount of light scattering. The outer core region is defined by a second configuration of voids that defines a second amount of light scattering that is different from the first amount of light scattering. A cladding surrounds the nanostructured core. Light scattered out of the inner core region scatters from the outer core region and then out of the cladding as scattered light. Selective bending of the light-diffusing optical fiber is used to define a bending configuration that allows for tailoring the intensity distribution of the scattered light emitted from the fiber as a function of the length of the fiber.

Abstract: A method for measuring a mechanical property of a coating on an optical fiber may include collecting Brillouin frequency shift data of the coating on the optical fiber, and determining the mechanical property of the coating by comparing the collected Brillouin frequency shift data with correlation data that may include a set of collected sample Brillouin frequency shift data and a set of collected sample mechanical property data of a plurality of sample materials. The sample materials may include a substantially identical sample composition including one or more curable polymers, be prepared with varying processing conditions, and have different mechanical property values. The coating on the optical fiber may include a material composition substantially identical to the sample materials composition. The set of collected sample Brillouin frequency shift data may be correlated with the set of collected sample mechanical property data to determine a quantitative relationship therebetween.

Abstract: Disclosed herein are methods for making a sealed device (200), the methods comprising positioning a sealing layer comprising at least one metal between a first glass substrate (201a) and a second substrate (201b) to form a sealing interface; and directing a laser beam operating at a predetermined wavelength onto the sealing interface to form at least one seal (207) between the first and second substrates and to convert the at least one metal to metal nanoparticles. Sealed devices having a seal comprising metal nanoparticles having a particles size of less than about 50 nm are also disclosed herein, as well as display devices comprising such sealed devices.

Abstract: The present disclosure relates to a process for cutting and separating arbitrary shapes of thin substrates of transparent materials, particularly tailored composite fusion drawn glass sheets, and the disclosure also relates to a glass article prepared by the method. The developed laser method can be tailored for manual separation of the parts from the panel or full laser separation by thermally stressing the desired profile. The self-separation method involves the utilization of an ultra-short pulse laser that can be followed by a CO2 laser (coupled with high pressure air flow) for fully automated separation.

Abstract: A light-diffusing optical fiber with a light-guiding core having a plurality of elongated glass rods each oriented substantially parallel with each other and with the length of the optical fiber. The fiber also includes a cladding surrounding the glass core, the cladding having a refractive index similar to, or lower than, a refractive index of the glass core. The light-guiding core includes a plurality of gaps formed between the plurality of elongated glass rods, the plurality of gaps scattering light away from the light-guiding core and through the cladding.

Abstract: Light diffusing optical fibers for use illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including a scattering layer.

Abstract: A laser weldable device housing substrate, device housing and related method are provided. The substrate includes a first surface, a second surface opposite the first surface, and a thin inorganic particle layer supported by the first surface. The inorganic particle layer includes a plurality of particles arranged in a layer on the first surface. The particles have an average diameter of less than or equal to 1.0 ?m, and the inorganic particle layer has an average thickness of less than or equal to 5 ?m.

Abstract: A light-diffusing optical fiber with a light-guiding core having a plurality of elongated glass rods each oriented substantially parallel with each other and with the length of the optical fiber. The fiber also includes a cladding surrounding the glass core, the cladding having a refractive index similar to, or lower than, a refractive index of the glass core. The light-guiding core includes a plurality of gaps formed between the plurality of elongated glass rods, the plurality of gaps scattering light away from the light-guiding core and through the cladding.

Abstract: A method of sealing a workpiece comprising forming an inorganic film over a surface of a first substrate, arranging a workpiece to be protected between the first substrate and a second substrate wherein the inorganic film is in contact with the second substrate; and sealing the workpiece between the first and second substrates as a function of the composition of impurities in the first or second substrates and as a function of the composition of the inorganic film by locally heating the inorganic film with a predetermined laser radiation wavelength. The inorganic film, the first substrate, or the second substrate can be transmissive at approximately 420 nm to approximately 750 nm.

Abstract: Transparent glass-to-glass hermetic seals are formed by providing a low melting temperature sealing glass along a sealing interface between two glass substrates and irradiating the interface with laser radiation. Absorption by the sealing glass and induced transient absorption by the glass substrates along the sealing interface causes localized heating and melting of both the sealing glass layer and the substrate materials, which results in the formation of a glass-to-glass weld. Due to the transient absorption by the substrate material, the sealed region is transparent upon cooling.

Abstract: Methods of fabricating formed glass articles are described herein. In one embodiment, a method for fabricating a formed glass article may include forming a glass ribbon, forming a parison, and shaping the parison to form a glass article. The glass article may be attached to the glass ribbon at an attachment region defining an edge of the glass article. The process may also include contacting the attachment region with a focal line of a laser beam and separating the glass article from the glass ribbon at the attachment region. The attachment region may be perforated by the laser beam and the focal line may be substantially perpendicular to the plane of the glass ribbon.

Abstract: A method of sealing a workpiece comprising forming an inorganic film over a surface of a first substrate, arranging a workpiece to be protected between the first substrate and a second substrate wherein the inorganic film is in contact with the second substrate; and sealing the workpiece between the first and second substrates as a function of the composition of impurities in the first or second substrates and as a function of the composition of the inorganic film by locally heating the inorganic film with a predetermined laser radiation wavelength. The inorganic film, the first substrate, or the second substrate can be transmissive at approximately 420 nm to approximately 750 nm.

Abstract: A method of sealing a workpiece comprising forming an inorganic film over a surface of a first substrate, arranging a workpiece to be protected between the first substrate and a second substrate wherein the inorganic film is in contact with the second substrate; and sealing the workpiece between the first and second substrates as a function of the composition of impurities in the first or second substrates and as a function of the composition of the inorganic film by locally heating the inorganic film with a predetermined laser radiation wavelength. The inorganic film, the first substrate, or the second substrate can be transmissive at approximately 420 nm to approximately 750 nm.

Abstract: A light-diffusing optical element with efficient coupling to light sources with high numerical aperture. The light-diffusing optical element includes a higher index core surrounded by a lower index cladding. The cladding includes scattering centers that scatter evanescent light entering the cladding from the core. The scattered light exits the element to provide broad-area illumination along the element. Scattering centers include dopants, nanoparticles and/or internal voids. The core may also include scattering centers. The core is glass and the cladding may be glass or a polymer. The element features high numerical aperture and high scattering efficiency.

Abstract: A flow reactor for photochemical reactions comprises an extended flow passage (20) surrounded by one or more flow passage walls (22), the flow passage having a length and a light diffusing rod (30) having a diameter of at least 500 ?m and a length, with at least a portion of the length of the rod (30) extending inside of and along the flow passage (20) for at least a portion of the length of the flow passage (20).

Abstract: A lighting device is provided that includes a light source package including a diode disposed in a housing and emitting light at an emission point within the housing. The lighting device also has an optical fiber extending through an opening in the housing and having a terminal end optically aligned on an optical axis with the diode to within a distance of less than 1.0 millimeter from the emission point, wherein the fiber emits light via a light diffusing fiber.

Abstract: Light diffusing optical fibers for use in illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including both a scattering layer and a phosphor layer.