Schott Glass Technologies, Inc.

Schott Glas

Schott Ag

Alexander J Marker, Iii

Joseph S Hayden

Samuel David Conzone

Rainer Liebald

Sally Pucilowski

Ruediger Sprengard

John H Campbell

Lee M Cook

Ulrike Beer

Ulrich Peuschert

Tobias Käleer

Marren Walther

A method for the low temperature joining of similar and/or different phosphate glass by mating at low temperature glass components by an aqueous solution containing phosphorus. In preferred embodiments, the phosphate glasses are polished, cleaned, and brought together with the phosphate-containing solution between the polished surfaces. Vacuum may be applied to assist in making the joint. The composite is optionally heat treated to increase strength, chemical durability, and optical performance. The bond thereby formed has low birefringence, is strong, and is virtually photonically invisible. The joints now make possible, for example, substrates for virtually no loss signal splitters and other high-end optical components at low cost. Large hybrid performs substrates composed of multiple glass components may be prepared and segmented, providing an inexpensive novel substrate for the photonics industry. Active lasing phosphate glasses may be joined by the present invention method to passive non-lasing glasses for use in laser and related applications.

Low temperature joining of phosphate glass

The invention concerns a photonic device comprising a first section including a material adapted to interact with photons, a second section including a material adapted to interact with photons, with an area of said first section and an area of said second section abutting each other wherein at least a part of said first area and a part of said second area defines a low temperature bonding area to provide adaptability for a plurality of applications based on a combination of materials having specific characteristic benefits, however without introducing unwanted effects having a negative influence on the quality of optical signals.

Photonic devices for optical and optoelectronic information processing

Athermal optical components comprise cubic crystalline materials including silver chloride and cesium bromide, or comprise composites of at least two layers of different compositions wherein the total optical pathlength, nL, across said layers is essentially independent of temperature.

Athermal optical components

A method for fabricating composite light-weighted glass ceramics, suitable for use as, e.g. mirror blanks or microlithography stages, at low temperatures is disclosed. Component pieces are polished then joined at low temperature using a silicate-containing joining liquid. Assembly is then performed in such a way that the joining liquid forms an interface between each component. After a period of low or slightly elevated temperature curing, rigid joints are formed throughout and the composite is dimensionally, vibrationally, and temperature stable and can withstand tensile stresses > psi. The room-temperature cured composite can be heat treated using a slow, systematic temperature increase to dehydrate the joints. A sealing coating may optionally be provided to prevent excess dried joining liquid from flaking off the formed joint.

Process for the fabrication of glass ceramic structures

Interference filter having a glass substrate

A Cu-doped/Fe-doped low expansion glass ceramic composition comprising:

Cladding glass ceramic for use in high powered lasers

A colored glass suitable for enhancing contrast of color CRT displays consists essentially of, in weight %:

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Moscow, PA, United States of America

Alexander J Marker, Iii