Abstract: Athermal glasses and athermal systems for infrared optical components and systems are disclosed.

Abstract: The invention relates to a supercontinuum source comprising a pump light source arranged to emit pump light and a nonlinear fiber having a core arranged to receive the pump light. The supercontinuum comprises infrared wavelengths generated in the nonlinear fiber from the pump light. The nonlinear fiber has a dispersion profile comprising—a zero dispersion wavelength,—a positive peak value at a peak wavelength longer than the zero dispersion wavelength,—a minimum value of dispersion at a minimum wavelength longer than the peak wavelength. The pump light is arranged to comprise substantial energy at one or more preferred pump wavelengths which are 10 nm longer than the zero dispersion wavelength or more, The invention also relates to a supercontinuum pump source comprising a nonlinear fiber having a core comprising a fluoride glass and having a core diameter smaller than 7 ?m, where the fiber has a numerical aperture of more than 0.26.

Abstract: A silica glass for a radio-frequency device has an OH group concentration being less than or equal to 300 wtppm; an FQ value being higher than or equal to 90,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz; and a slope being greater than or equal to 1,000 in a case where the FQ value is approximated as a linear function of the frequency in a frequency band of higher than or equal to 20 GHz and lower than or equal to 100 GHz.

Abstract: The present disclosure relates to compositions that can be used for optical fibers and other systems that transmit light in the near-, mid- and/or far-ranges of the infrared spectrum, such as for example in the wavelength range of 1.5 ?m to 14 ?m. The optical fibers may comprise a light-transmitting chalcogenide core composition and a cladding composition. In some embodiments, the light-transmitting chalcogenide core composition has a refractive index n(core) and a coefficient of thermal expansion CTE(core), and the cladding composition has a refractive index n(cladding) and a coefficient of thermal expansion CTE(cladding), wherein n(cladding) is less than n(core) and in some embodiments wherein CTE(cladding) is less than CTE(core). In some embodiments, the chalcogenide glass core composition comprises a) sulfur and/or selenium, b) germanium, and c) gallium, indium, tin and/or one or more metal halides.

Abstract: A beam positioner can be broadly characterized as including a first acousto-optic (AO) deflector (AOD) operative to diffract an incident beam of linearly polarized laser light, wherein the first AOD has a first diffraction axis and wherein the first AOD is oriented such that the first diffraction axis has a predetermined spatial relationship with the plane of polarization of the linearly polarized laser light. The beam positioner can include at least one phase-shifting reflector arranged within a beam path along which light is propagatable from the first AOD. The at least one phase-shifting reflector can be configured and oriented to rotate the plane of polarization of light diffracted by the first AOD.

Abstract: Disclosed is a solid electrolyte for an all-solid battery and a method of preparing the same. Particularly, the solid electrolyte may have an argyrodite-type crystal structure.

Abstract: The present invention provides for synthesizing high optical quality multicomponent chalcogenide glasses without refractive index perturbations due to striae, phase separation or crystal formation using a two-zone furnace and multiple fining steps. The top and bottom zones are initially heated to the same temperature, and then a temperature gradient is created between the top zone and the bottom zone. The fining and cooling phase is divided into multiple steps with multiple temperature holds.

Abstract: The present invention provides an infrared-transmitting glass that is a chalcogenide glass, has a reduced Ge content, can sufficiently cover atmospheric windows, is free from highly toxic elements, such as Se and As, and is suitable for mold forming. Specifically, the present invention provides an infrared-transmitting glass suitable for mold forming, comprising, in terms of molar concentration: 0 to 2% of Ge, 3 to 30% of Ga, 10 to 40% of Sb, 45 to 70% of S, 3 to 30% of at least one member selected from the group consisting of Sn, Ag, Cu, Te, and Cs, and 0 to 30% of at least one member selected from the group consisting of Cl, Br, and I.

Abstract: The present invention provides a method for synthesizing high optical quality multicomponent chalcogenide glasses without refractive index perturbations due to striae, phase separation or crystal formation using a two-zone furnace and multiple fining steps. The top and bottom zones are initially heated to the same temperature, and then a temperature gradient is created between the top zone and the bottom zone. The fining and cooling phase is divided into multiple steps with multiple temperature holds.

Abstract: Provided is a thermally stable and inexpensive infrared transmitting glass. An infrared transmitting glass containing, in % by mole, 0 to 20% Ge (exclusive of 0% and 20%), 0 to 40% Sb (exclusive of 0%), 0 to 20% Bi (exclusive of 0%), and 50 to 80% S+Se+Te.

Abstract: A non-stoichiometric glass composition having greater than or equal to about 50 mol. % to less than or equal to about 95 mol. % GeX2; greater than or equal to about 0.5 mol. % to less than or equal to about 35 mol. % Ga2X3, In2X3, or a combination thereof; and greater than or equal to about 0.5 mol. % to less than or equal to about 40 mol. % RX. R can be an alkaline earth metal. X can be present in a non-stoichiometric amount and can be selected from Se, Te, S, and combinations thereof. A method for making a non-stoichiometric glass including forming a GaGeX precursor material, grinding the precursor material, loading the ground precursor material with an alkaline earth metal component, and forming an alkaline earth metal GaGeX glass.

Abstract: A method to synthesize striae-free chalcogenide glass using melt processing. A striae-free chalcogenide glass with uniform refractive index.

Abstract: An all-solid-state secondary cell is provided comprising at least a positive electrode, a negative electrode and a solid electrolyte layer which is positioned between the positive electrode and the negative electrode. The positive electrode contains a positive electrode active material consisting of Na2Sx (x=1 to 8) and the solid electrolyte layer contains an ion conductive glass ceramics represented by a formula (I): Na2S-MxSy, wherein M is P, Si, Ge, B or Al; x and y each is an integer giving a stoichiometric ratio depending upon the type of M; and Na2S is contained in an amount of more than 67 mole % and less than 80 mole %.

Abstract: The lithium-ion conductor contains a crystal structure whose composition formula is represented by Li7+2xP1-xBxS6 (0<x?1). The crystal structure contains a LiS4 tetrahedron and a BS4 tetrahedron, a triangle window of the LiS4 tetrahedron through which lithium ions pass becomes large caused by the BS4 tetrahedron, and an ionic conductive path is expanded. Furthermore, lithium ions being a conductive carrier are added corresponding to B quantity x. Consequently, a lithium-ion conductor that exhibits excellent ion conductive property is realized. By using the lithium-ion conductor for a solid electrolyte, an all-solid lithium-ion secondary battery with high characteristics is realized.

Abstract: Embodiments of the present disclosure describe chalcogenide glass compositions and chalcogenide switch devices (CSD.) The compositions generally may include 3% to 15%, silicon, 8% to 16% germanium in, greater than 45% selenium, and 20% to 35% arsenic, by weight. The amount of silicon and germanium in a composition generally may include more than 10% by weight. CSDs may include various compositions of chalcogenide glass, and a plurality of them may be used in a memory device, such as die with a memory component, and may be used in various electronic components and systems. Other embodiments may be described and/or claimed.

Abstract: The main object of the present invention is to provide a sulfide solid electrolyte material with less hydrogen sulfide generation amount. The present invention solves the above-mentioned problem by providing a sulfide solid electrolyte material obtained by using a raw material composition containing Li2S and sulfide of an element of the fourteenth family or the fifteenth family, characterized by not substantially containing cross-linking sulfur and Li2S.

Abstract: Boron-containing network sulfide glass which may be useful in IR transmitting applications, such as IR optics, laser or fiber amplifiers doped with rare earths with emission in the near IR, and methods of making the same.

Abstract: Methods for preparing ferroelectric nanoparticles, liquid crystal compositions containing the ferroelectric nanoparticles, and electronic devices utilizing the ferroelectric nanoparticles are described. The methods of preparing the ferroelectric nanoparticles may include size-reducing a starting material comprising particles of a bulk intrinsically nonferroelectric glass to form glass nanoparticles having an average size of less than 20 nm, the glass nanoparticles comprising ferroelectric nanoparticles. Exemplary bulk intrinsically nonferroelectric glasses may include borosilicate glasses, tellurite glasses, bismuthate glasses, gallate glasses, and mixtures thereof, for example. The size reduction may be accomplished using ball milling with a solvent combination such as n-heptane and oleic acid. Liquid crystal compositions may include the ferroelectric nanoparticles in combination with a liquid crystal.

Abstract: The purpose of the present invention is to use chalcogenide glass to produce an infrared transmitting glass that is more suitable for mold-forming than the conventional glasses. Specifically, the invention provides an infrared transmitting glass for mold forming which contains, in molar concentrations, 2-22% of Ge, 6-34% of at least one element selected from the group consisting of Sb and Bi, 1-20% of at least one element selected from the group consisting of Sn and Zn and 58-70% of at least one element chosen from the group comprising S, Se and Te.

Abstract: The invention relates to chalcogenide glass compositions for use in a lens system to balance thermal effects and chromatic effects and thereby provide an achromatic and athermal optical element that efficiently maintains achromatic performance across a broad temperature range. The glass composition is based on sulfur compounded with germanium, arsenic and/or gallium, and may further comprise halides of, for example, silver, zinc, or alkali metals. Alternatively, is based on selenium compounded with gallium, and preferably germanium, and contains chlorides and/or bromides of, for example, zinc, lead or alkali metals.

Abstract: IR-transmitting alkaline earth selenogallo- and/or selenoindo-germanate glasses that are capable of hosting luminescent rare earth dopants. The relatively high Ga and/or In content of most compositions serves to eliminate the typical clustering tendency of rare earth dopants in chalcogenide glasses, resulting in improved luminescence.

Abstract: The invention relates to a new class of luminescent substances (phosphorous) based on an universally dopable matrix made of an amorphous, at the most partially crystalline network of the elements P, Si, B, Al and N, preferably the composition Si3B3N7. Optical excitation and emission can be varied in this system over the entire practically relevant field by incorporation of any cationic activators, alone or in combination, but also by incorporation of oxygen as anionic component. This opens up the entire spectrum of use of luminescent substances, such as illumination systems or electronic screens.

Abstract: The present invention is generally directed to a method of making chalcogenide glasses including holding the melt in a vertical furnace to promote homogenization and mixing; slow cooling the melt at less than 10° C. per minute; and sequentially quenching the melt from the top down in a controlled manner. Additionally, the present invention provides for the materials produced by such method. The present invention is also directed to a process for removing oxygen and hydrogen impurities from chalcogenide glass components using dynamic distillation.

Abstract: IR-transmitting alkaline earth selenogallo- and/or selenoindo-germanate glasses that are capable of hosting luminescent rare earth dopants. The relatively high Ga and/or In content of most compositions serves to eliminate the typical clustering tendency of rare earth dopants in chalcogenide glasses, resulting in improved luminescence.

Abstract: A process for producing an optical glass fiber from crystal-glass phase material. In one embodiment, the process includes the step of providing a molten crystal-glass phase material in a container, wherein the temperature of the molten crystal-glass phase material is at or above the melting temperature of the molten crystal-glass phase material, Tm, to allow the molten crystal-glass phase material is in liquid phase. The process further includes the step of cooling the molten crystal-glass phase material such that the temperature of the molten crystal-glass phase material, T1, is reduced to below Tm to cause the molten crystal-glass phase material to be changed from the liquid phase to a viscous melt.

Abstract: A thermally stable chalcogenide glass, a process for making the same, and an optical fiber drawn therefrom are provided. A chalcogenide glass having the composition Ge(5?y)As(32?x)Se(59+x)Te(4+y) (0?y?1 and 0?x?2) is substantially free from crystallization when it is heated past the glass transition temperature Tg or drawn into optical fibers. A process for making the thermally stable chalcogenide glass includes purifying the components to remove oxides and scattering centers, batching the components in a preprocessed distillation ampoule, gettering oxygen impurities from the mixture, and heating the components to form a glass melt. An optical fiber formed from the chalcogenide glass is substantially free from crystallization and exhibits low signal loss in the near-infrared region, particularly at wavelengths of about 1.55 ?m.

Abstract: Embodiments relate to a transparent body comprising a matrix material and a plurality of non-metal particles positioned in the matrix material. The matrix material may be selected from the group consisting of glass materials, ceramic materials, and semiconductor materials. The non-metal particles may have a mean particle size of no greater than 150 nm. The non-metal particles may be present in the body at a volume fraction of no greater than 3 percent. The non-metal particles may have a composition different than that of the matrix. Other embodiments are described and claimed.

Abstract: A physical quantity sensor device (10) having a structure in which a stress-sensitive body (1) of which the electric characteristics vary depending upon the application of stress and an insulator (2) having electric insulation are formed being closely adhered together, wherein the stress-sensitive body (1) comprises a thin glass film containing an electrically conductive element that is solidly dissolved therein as atoms, a method of manufacturing the physical quantity sensor device, a piezo-resistive film comprising a thin glass film containing ruthenium that is solidly dissolved therein as atoms, and a method of manufacturing the piezo-resistive film.

Abstract: A glass material for mold pressing, comprised of a core portion comprised of a multicomponent optical glass containing at least one readily reducible component selected from among W, Ti, Bi, and Nb, and a covering portion covering the surface of said core portion, comprised of a multicomponent glass containing none or a lower quantity of said readily reducible component than is contained in said core portion. A glass material for mold pressing comprising a core portion comprised of a fluorine-containing multicomponent optical glass and a covering portion covering the surface of said core portion, comprised of a multicomponent glass containing none or a lower quantity of fluorine than is contained in said core portion. A method for manufacturing an optical glass element comprising heat softening a glass material that has been preformed into a prescribed shape, and conducting press molding with a pressing mold, employing the above glass material of the invention.

Abstract: The purpose of the present invention is to use chalcogenide glass to produce an infrared transmitting glass that is more suitable for mold-forming than the conventional glasses. Specifically, the invention provides an infrared transmitting glass for mold forming which contains, in molar concentrations, 2-22% of Ge, 6-34% of at least one element selected from the group consisting of Sb and Bi, 1-20% of at least one element selected from the group consisting of Sn and Zn and 58-70% of at least one element chosen from the group comprising S, Se and Te.

Abstract: This invention pertains to a chalcogenide glass of low optical loss that can be on the order of 30 dB/km or lower, and to a process for preparing the chalcogenide glass.

Abstract: Ga—P—S glass compositions that may have application in infrared (IR) windows, waveguiding fibers, or as host glasses for luminescent dopants are described.

Abstract: A chalcogenide glass composition composed of arsenic (As), selenium (Se), sulfur (S), and antimony (Sb) is presented. The composition includes arsenic in the range from 25% to 45% by weight relative to the total weight of the composition, selenium in the range from 40% to 65% by weight relative to the total weight of the composition, sulfur in the range from 2% to 15% by weight relative to the total weight of the composition, and antimony in the range from 0% to 15% by weight relative to the total weight of the composition. The variability of constituents on a weight basis is greater than the related arts, thus facilitating a broader range of design options. The glass composition is preferred to have a thermal expansion coefficient of about 23.6×10?6/° C., a temperature coefficient of refractive index less than about 1×10?6/° C., a glass transition temperature less than 200 degrees Celsius, and/or a glass softening temperature less than 250 degrees Celsius.

Abstract: The present invention is generally directed to a method of making chalcogenide glasses including holding the melt in a vertical furnace to promote homogenization and mixing; slow cooling the melt at less than 10° C. per minute; and sequentially quenching the melt from the top down in a controlled manner. Additionally, the present invention provides for the materials produced by such method. The present invention is also directed to a process for removing oxygen and hydrogen impurities from chalcogenide glass components using dynamic distillation.

Abstract: A method for manufacturing a bioactive glass ceramic material is firstly to prepare a calcium phosphate series ceramic material and a nano-scaled titanium dioxide powder with a specific proportion of anatase type titanium dioxide structure. Then, the calcium phosphate series ceramic material and the nano-scaled titanium dioxide powder are mixed according to a specific proportion for obtaining a mixture. The mixture is then melted and quenched to form a biomedical glass. Finally, the biomedical glass can be further ground into a biomedical glass powder, and a heat treatment can be applied to recrystalize the powder so as to obtain the bioactive glass ceramic material. Also, the bioactive glass ceramic material can be further polarized into a electrified bioactive glass ceramic material which can promote the growth of a broken bone.

Abstract: Ga—P—S glass compositions that may have application in infrared (IR) windows, waveguiding fibers, or as host glasses for luminescent dopants are described.

Abstract: The invention is directed to Pd-based metallic glass alloys useful in biomedical applications having no Ni or Cu. Exemplary metallic glass alloys are represented by AaBb{(Si)100-c(D)c}d, where A may be selected from Pd, and combinations of Pd and Pt, B may be selected from Ag, Au, Co, Fe, and combinations thereof, and D may be selected from P, Ge, B, S. Also, a, b, c and d are atomic percentages, and a ranges from about 60 to about 90, b ranges from about 2 to about 18, d ranges from about 5 to about 25, and c is greater than 0 and less than 100.

Abstract: The invention relates to vitreous compositions, in particular of the vitroceramic type, transparent to infrared, production and uses thereof. Said compositions comprise in mol. %: Ge 5-40, Ga<1, S+Se 40-85, Sb+As 4-40, MX 2-25, Ln 0-6, adjuncts 0-30, where M=at least one alkaline metal, selected from Rb, Cs, Na, K and Zn, X=at least one atom of chlorine, bromine or iodine, Ln=at least one rare earth and adjunct=at least one additive comprising at least one metal and/or at least one metal salt with the sum of all molar percentages of the components present in said composition being 100.

Abstract: A nitride glass with the general formula ?x?y?z is provided wherein ? is a glass modifier comprising at least one electropositive element. ? comprises Si, B, Ge, a and/or Al. ? is N or N together with O, whereby the atomic ratio of O:N is in the interval from 65:35 to 0:100.

Abstract: This invention pertains to a chalcogenide glass of low optical loss that can be on the order of 30 dB/km or lower, and to a process for preparing the chalcogenide glass.

Abstract: This invention pertains to a chalcogenide glass of low optical loss that can be on the order of 30 dB/km or lower, and to a process for preparing the chalcogenide glass.

Abstract: The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the sane; Z is Se, Te, or a mixture of Se+Te; and Y and Z are present in amounts (in atomic/element percent) in the range of Y=15-70% and Z=30-85%. The chalcogenide glasses of the invention have a 10,000 poise temperature of 400° C. and are resistant to crystallization when processed at high shear rates at their 10,000 poise temperature. The glasses can be used to make, among other items, molded telecommunication elements, lenses and infrared sensing devices.

Abstract: In one aspect, the invention provides glass beads and optical devices comprising the glass beads. In other aspects, the invention provides methods of making said glass beads and rapid glass screening methods that use glass beads. Glass beads of the invention comprise greater than 80 weight percent silica, active rare earth dopant, and modifying dopant. In another embodiment the glass beads comprise greater than 80 weight percent silica and at least 5 weight percent germania. In another embodiment, glass beads comprise and from about 20 to about 90 anion mole percent of non-oxide anion.

Abstract: In general, in one aspect, the disclosure features a fiber waveguide having a waveguide axis, including a core extending along the waveguide axis and a confinement region extending along the waveguide axis surrounding the core. The confinement region includes a periodic structure along a radial direction extending from the waveguide axis and each period in the periodic structure includes a layer of a chalcogenide glass and a layer of a polymer.

Abstract: An infrared-transmitting glass material consists essentially of 35.3% wt. arsenic and 64.3% wt. selenium and has an expansion coefficient of 27×10?6/° C.

Abstract: The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the same; Z is S, Se, Te, or a mixture of two or more of the same; and Y and Z are present in amounts (in atomic/element percent) in the range of Y=15–70% and Z=30–85%. The chalcogenide glasses of the invention have a 10,000 poise temperature of 400° C. and are resistant to crystallization when processed at high shear rates at their 10,000 poise temperature. The glasses can be used to make, among other items, molded telecommunication elements, lenses and infrared sensing devices.

Abstract: An infrared-transmitting glass material consists essentially of 35.3% wt. arsenic and 64.3% wt. selenium and has an expansion coefficient of 27×10?6/° C.

Abstract: Specific photochromic 3H-naphtho[2,1-b]-pyran compounds useful with various types of synthetic resin materials to form photochromic articles, especially ophthalmic lenses, and photochromic articles formed with such compounds. The compounds of the invention have especially long-wave absorption maxima in the open form thereof and enable violet to blue tints to be obtained when used in photochromic articles.

Abstract: A three-dimensional vertical memory with florescent photosensitive vitreous material is read and written to by a laser or respective lasers. The memory can be cerium and europium-doped fluorescent photosensitive glass, yttrium, europium and praseodymium-containing glass or TV-doped glass, etc. A confocal microscope may be used in the writing process and the memory may be scanned by rotating it.

Abstract: The invention resides in a molecular, inorganic glass and a method of making the glass, the glass being vitreous and resistant to devitrification, that is composed, in substantial part at least, of thermally-stable, zero-dimensional clusters or molecules, composed of four atoms of arsenic and three atoms of sulfur, the glass further containing up to 12 atomic percent of germanium, adjoining clusters being bonded to each other primarily by van der Waals forces, and at least 95% of the glass composition consisting of 42-60% arsenic, 37-48% sulfur plus selenium, the selenium being 0-14%.