Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7340147 | Optical waveguide material and optical waveguide The invention provides an optical waveguide material whose refractive index can be tailored without changing the ratio of Ta and Nb. An optical waveguide of this invention comprising an under-clad layer 1 and a core 2 that is formed on the under-clad l... | 03/04/2008 |
| 7262920 | Optical element and manufacturing method therefor An optical element and a manufacturing method therefor, an exposure apparatus, and a device manufacturing method that can reduce the effect of intrinsic birefringence under high NA conditions. According to an optical element as one aspect of the present invention, a... | 08/28/2007 |
| 7177514 | Optical waveguide material and optical waveguide The invention provides an optical waveguide material whose refractive index can be tailored without changing the ratio of Ta and Nb. An optical waveguide of this invention comprising an under-clad layer 1 and a core 2 that is formed on the under-clad l... | 02/13/2007 |
| 6996321 | Optical waveguide and method of manufacture An optical waveguide capable of having various characteristics and a method of manufacture thereof as well as a method of manufacturing a crystal film are provided. An optical functional material KTaxNb1-xO3 is used as an optical wav... | 02/07/2006 |
| 6792189 | Optical waveguide and method of manufacture An optical waveguide capable of having various characteristics and a method of manufacture thereof as well as a method of manufacturing a crystal film are provided. An optical functional material KTaxNb1-xO3 is used as an optical wav... | 09/14/2004 |
| 6605227 | Method of manufacturing a ridge-shaped three dimensional waveguide A method of manufacturing a ridge-shaped 3-dimensional waveguide, has the steps of: forming a crystal film made of a second ferroelectric oxide non-linear crystal having a refractive index higher than that of a substrate made of a first ferroelectric oxid... | 08/12/2003 |
| 6589333 | Method for the manufacture of a substrate, substrate manufactured in accordance with this method, carrier wafer and diamond jewel A method is described for the production of a suitable substrate for the subsequent growth of a mono-crystalline diamond layer. This method includes the following steps: Selection of a substrate of a mono-crystalline material having a fixed lattice consta... | 07/08/2003 |
| 6447606 | Method for producing a single-crystalline film of KLN or KLNT A method for producing a single-crystalline film made of a single crystal of lithium potassium niobate-lithium potassium tantalate solid solution or a single crystal of lithium potassium niobate, including the steps of preparing a target made of a materia... | 09/10/2002 |
| 6139630 | Suspender for polycrystalline material rods A suspender for suspending polycrystalline rods steadfastly and easily in a furnace for single-crystal fabrication by the recharge or additionally charged method is disclosed. The suspender includes a plate which is made of molybdenum or SiC-coated graphi... | 10/31/2000 |
| 6051062 | Optical single crystal film, process for producing the same and optical element comprising the same In producing an optical single crystal epitaxial film from a melt containing a transition metal on a single crystal substrate by a liquid phase epitaxial method, this process contains the steps of: annealing the film at a predetermined temperature in an o... | 04/18/2000 |
| 5900057 | Planar waveguide and a process for its fabrication A planar waveguide and a process for making a planar waveguide is disclosed. The waveguide has a layer of dope host material formed on a substrate. The host material is a trivalent material such as a metal fluoride, wherein the metal is selected from the ... | 05/04/1999 |
| 5773345 | Optical link amplifier and a wavelength multiplex laser oscillator The present invention provides an optical link amplifier which reduces the attenuation of the optical signal passing through optical an link amplifier so as to have a fail-safe function to ensure the communication path of an optical signal even if abnorma... | 06/30/1998 |
| 5654229 | Method for replicating periodic nonlinear coefficient patterning during and after growth of epitaxial ferroelectric oxide films A method for providing an nonlinear, frequency converting optical QPM waveguide device by growing a first ferroelectric oxide film or layer on a second ferroelectric layer or medium wherein, in first and second embodiments, respectively, the second layer ... | 08/05/1997 |
| 5354709 | Method of making a lattice mismatched heterostructure optical waveguide The invention comprises processes and heterostructure products defining silicon on insulator waveguides (80, 88, 90, 106, 112, 120, 122) that are suitable for use with light in the 1.3, 1.6 μm or greater wavelengths. Silicon is deposited on an insulator ... | 10/11/1994 |
| 5254496 | Semiconductor mixed crystal quantum well device manufacture A strain-compensated III-V quantum well device is grown by vapor phase epitaxy using the same relative atomic proportions of indium and gallium in both the quantum well layers (20) and the barrier layers (21). The top and bottom barrier layers of the quan... | 10/19/1993 |
| 5209917 | Lithium niobate single crystal thin film and production method thereof A lithium niobate single crystal thin film formed on a lithium tantalate substrate, in which the a-axis lattice constant of the lithium tantalate substrate and the a-axis lattice constant of the lithium niobate single crystal thin film are lattice matched... | 05/11/1993 |
| 5190883 | Method for making an integrated light guide detector structure made of a semiconductive material Method for making an integrated guide/detector structure made of a semiconductive material. This method consists of epitaxially growing on a semiconductor (2, 1) a lower confinement semiconductive film (4), a semiconductive guide film (6) and an upper sem... | 03/02/1993 |
| 5150447 | Optical waveguide which is formed by liquid phase epitaxial growth An optical waveguide, a dielectric device and method for fabricating such devices in which a substrate is polarized in a first direction and a dielectric thin film is formed on the surface of the substrate and polarized in the opposite direction to the su... | 09/22/1992 |
| 5146533 | Ion exchanged crystalline waveguides and processes for their preparation There is disclosed an optical waveguide comprising a K1-x Rbx TiOMO4 single crystal substrate, wherein x is from 0 to 1 and M is P or As, having at least one optically smooth surface wherein sufficient K+ and/or... | 09/08/1992 |
| 5139611 | Colloidal spheres in suspension The invention is a method of producing oriented, essentially perfect colloidal crystals by subjecting a suspension of colloidal spheres, which is contained betwen two narrowly spaced substantially parallel surfaces, to oscillating motion. This motion must... | 08/18/1992 |
| 5069744 | Process for producing single crystals of optical calcite A process is provided for producing single crystals of optical calcite by a hydrothermal method and comprises heating crystalline calcium carbonate, then crystalline calcium carbonate is recrystallized onto one seed plate arranged vertically in an inserti... | 12/03/1991 |
| 5066356 | Hydrothermal process for growing optical-quality single crystals A hydrothermal process for growing a crystal of MTiOXO4 at an elevated temperature is disclosed which employs a growth medium comprising a mineralizer solution, and is characterized as employing aqeuous mineralizer solution in which the concent... | 11/19/1991 |
| 5039187 | M1-x Nx TiAs1-a Pa O5 waveguides grown by liquid phase epitaxy and process of making same Optical waveguides prepared by liquid phase epitaxy comprising a film of M1-x Nx TiAs1-a Pa O5 on a substrate of MTiAs1-(a+b) O5 P.sub.(a+30 b) is disclosed.... | 08/13/1991 |
| 5016563 | Method of manufacturing thin compound oxide film and apparatus for manufacturing thin oxide film In a method of manufacturing a thin film of a compound oxide, different types of materials for forming the compound oxide are evaporated in vacuum. The evaporated materials are heated and deposited on a substrate to form a thin film. An oxygen ion beam ha... | 05/21/1991 |
| 5015328 | Method of reducing surface damage in KTP optical waveguides A method for producing an optical waveguide which comprises imersing a wafer of K1-x Rbx TiOMO4, wherein 0ࣘxࣘ1, and M is P or As, for 1-64 hours in molten potassium nitride at 400°-500° C., followed by washing and im... | 05/14/1991 |
| 4880288 | Integrated optical waveguide, method for its manufacture, and its use in an electro-optical modulator Disclosed is an integrated optical waveguide. This integrated optical waveguide is obtained by doping a lithium niobate monocrystal simultaneously or in two stages, by a titanium strip, in a manner known per se, to obtain a guiding zone for the optical wa... | 11/14/1989 |
| 4831628 | Denices fabricated using method of selective area epitaxial growth using ion beams A method of selective area epitaxial growth using a scanning ion beam is described.... | 05/16/1989 |
| 4806579 | Polymer composites A polymer matrix has grown therein in vitro and in situ non-centrosymmetric crystals of organic or inorganic compounds. The crystals are preferably orientated and may be used in electro-optical systems.... | 02/21/1989 |
| 4784717 | Method of manufacturing BaPb1 A method of manufacturing BaPb1-x Bix O3 single crystal wherein the BaPb1-x Bix O3 single crystal is grown by hydrothermal synthesis which applies heat and pressure to a nutrient composed o... | 11/15/1988 |
| 4784716 | Hybrid single crystal optic fibers by embedding A process of fabricating a hybrid single crystal fiber having nonlinear optical properties such as frequency doubling. Said process includes applying a force to a fiber core resting upon a bulk nonlinear crystal such as LiIO3 in a saturated sol... | 11/15/1988 |
| 4762588 | Method of manufacturing calcium carbonate single crystal A starting material composed of calcium carbonate is dissolved in a nitrate aqueous solution containing alkali nitrate under application of heat and pressure. The starting material is hydrothermally synthesized within the nitrate aqueous solution to effec... | 08/09/1988 |
| 4752451 | Apparatus for producing a strain-free monocrystal of a crystalline ferroelectric compound The process involves producing a monocrystal from the ferroelectric compound, annealing the monocrystal and cooling the latter in a zero longitudinal temperature gradient. The apparatus comprises means for producing the monocrystal, and heating means for ... | 06/21/1988 |
| 4729968 | Hydride deposition of phosporus-containing semiconductor materials avoiding hillock formation Hillock formation in the vapor phase epitaxial hydride deposition of indium phosphide is avoided. This effect is accomplished by ensuring that the phosphine utilized in the deposition gas flow is essentially completely decomposed before reaching the depos... | 03/08/1988 |
| 4685995 | Process for manufacturing calcium carbonate single crystal Calcium carbonate single crystal, which can be optically used and industrialized, is produced by hydrothermal synthesis method in which the single crystal over species crystal is grown by using NaCl or KCl or LiCl aqueous solution under fixed temperature ... | 08/11/1987 |
| 4640736 | Wave guide fabrication method A method for controlled fabrication of a waveguide region in a crystalline member, such as lithium niobate. The crystalline member is placed within a crucible which gives off the same metal component as the crystalline member at a predetermined temperatur... | 02/03/1987 |
| 4632723 | Orientation filtering for crystalline films A substrate is coated with a film to be recrystallized. A pattern of crystallization barriers is created in the film, for example, by etching voids in the film. An encapsulation layer is generally applied to protect the film, fill the voids and otherwise ... | 12/30/1986 |
| 4624901 | Intermediary layers for epitaxial hexagonal ferrite films A single crystal film of a hexagonal ferrite is deposited on a nonmagnetic, single crystal substrate with a film of a second ferrite material interposed between the substrate and the hexagonal ferrite film. In a preferred embodiment, the substrate is of n... | 11/25/1986 |
| 4607776 | Apparatus for translating crystal fibers Translation apparatus for a crystal fiber includes a resilient belt which receives a crystal fiber in pressure engagement. The fiber is supported against the belt by a support member having a grooved surface for receiving the fiber. A floating block is po... | 08/26/1986 |
| 4561915 | Process for epitaxial growth on a corrugated wafer A process for epitaxial growth which effects epitaxial growth while suppressing thermal deformation of surface corrugations of an InGaAsP/InP system semiconductor substrate. Deformation of surface corrugations is suppressed by disposing a GaAs1-z | 12/31/1985 |
| 4420873 | Optical guided wave devices employing semiconductor-insulator structures A method for fabricating three-dimensional optical waveguides is disclosed. In this method, a single crystal semiconductor layer is grown upon an insulator which has an index of refraction lower than the semiconductor. The semiconductor layer is deposited... | 12/20/1983 |
