Rutgers, the State University of New Jersey

George H Sigel

Daniel Scott Homa

Bernard H Kear

Alan Appleby

Lisa C Klein

Christopher D Haines

Varadh Ranganathan

Il Sik Kim

A new class of nanostructured RE-doped SiO-base materials that display superior fluorescence properties is provided. In particular, high gain combined with a broad and flat spectral band width is observed in material composed of a high fraction of a nano-dispersed metastable silicate phase in a glassy SiOmatrix, produced by partial devitrification (crystallization) of several glassy AlO/ErO- and YO/ErO-doped SiOcompositions. Also, a highly deconvoluted spectral emission, with several prominent peaks, is observed in completely devitrified material, consisting of a uniform nano-dispersion of an equilibrium silicate phase in a crystobalite SiOmatrix. Such enhanced fluorescence properties were observed in heat treated nanopowders prepared by vapor-phase, solgel, rapid solidification, and spray-pyrolysis methods.

[object Object]

A preform for a low loss fiber optic cable and method and apparatus for fabricating such a preform is provided. The method includes providing AlCland CVD precursors and locally doping CaCl. Alkali and/or alkaline earth fluxing agents can be introduced. The alkali and/or alkaline earths are doped along with the aluminum into the silica glass core.

Fiber optic cable and process for manufacturing

A method and apparatus for testing and remediating the effects of radon infiltration in buildings. The method of this invention places fiber glass materials over radon-emitting surfaces in order to entrap radon and radon progeny. The fiber glass materials can be formed into mats having a packed geometry. Each mat has fiber bundles having several thousand individual fibers. Each fiber has an approximate diameter size of about 50 microns. The glass fiber consists of a silicon oxide glass that may be doped, for example, with trivalent cerium ions. The mats can be of any geometrical configuration, such as rectangular.

Use of glass fiber materials in diagnosing and preventing radon

Growing community of inventors

Stockton, NJ, United States of America

George H Sigel