Leland Stanford Junior University

Robert S Feigelson

Dan Gazit

Martin M Fejer

Michel J Digonnet

Theodore H Geballe

Alexander Borshchevsky

Whu-ming Young

Robert C De Mattei

Dennis Elwell

A method of growing a superconducting ribbon from a molten region of a Bi-based superconducting source material using two parallel platinum support wires is described. A method of annealing the ribbon in air to reduce the quantity of nonsuperconducting phases is also described.

Superconducting ribbon process using laser heating

An integrated optical waveguide is constructed from a lithium niobate (LiNbO.sub.3) crystal substrate. In preferred embodiments, a diffused layer is formed proximate to one surface of the substrate by sputtering a thin layer of a zinc-related oxide (e.g., ZnO, ZnLiNbO.sub.4, or the like) onto the surface and then annealing the substrate. The resulting concentration of zinc in the diffused layer forms a waveguide having desirable optical propagation characteristics. The substrate is preferably congruent lithium niobate. In particularly preferred embodiments, the substrate is magnesium oxide (MgO) doped lithium niobate.

Integrated optical waveguide utilizing zinc oxide diffused into

A method is provided for making a flexible superconductive composite wire by drawing a wire of noble metal through a melt formed from solid superconducting material. The preferred superconducting material comprises the Bi-Sr-Ca-Cu-O class of materials.

Method of forming a ceramic superconducting composite wire using a

An endless wire saw in which a workpiece is placed in pressure engagement with the wire and a cutting material carried by the wire slices through the workpiece. The cutting material may be a slurry such as a glycerin fluid carrying silicon carbide particles.

Endless wire saw having material recovery capability

The crystalline structure of cadmium telluride grown in a Bridgman process is enhanced by applying vibrations at a frequency less than 1000 hertz at a low amplitude whereby the cadmium telluride has vibrations with a displacement of less than one-tenth millimeter.

Method of growing single crystal cadmium telluride

Silicon dioxide is dissolved in a molten electrolytic bath, preferably comprising barium oxide and barium fluoride. A direct current is passed between an anode and a cathode in the bath to reduce the dissolved silicon dioxide to non-alloyed silicon in molten form, which is removed from the bath.

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Saratoga, CA, United States of America

Robert S Feigelson