Gregory E. Williams

Boron-doped carbon nanotube coating for transparent, conducting, flexible photonic devices

Conducting transparent polymer materials were made by applying boron-doped single-walled carbon nanotubes to the surfaces of glass and flexible polyethylene terephthalate film substrates. Optical transmission and sheet resistance measurements showed that the boron-doped coated samples had sheet resistances of ∼7kΩ∕◻ and flat optical transmission of ∼89% for visible light. Temperature and humidity tests showed that the materials remained conductive after nearly 150h of testing. The materials are robust and even maintain their conducting properties after being folded. Fabrication of a simple light emitting device demonstrates usage of the material as a flexible transparent electrode.

Photochemically Machined, Glass Ceramic, Optical Fiber Interconnection Components

An optical fiber array interconnection substrate for computer applications was dgveloped based around a photomachinable glass-ceramic material having the trade name Fotofore% Devices incorporating up to 32 fibers on a single chip were shown to be possible, and the material was demonstrated to be patternable with accuracies approaching single crystal silicon. The glass-ceramic material has several advantages over silicon in that it is less brittle, can be easily loaded with fibers, and can be assembled using UV curable epoxies.

Photochemically processed glass-ceramic optical interconnects

The use of a photochemically processed glass-ceramic material, Fotoform, as a substrate for making optical-fiber-array interconnects for computer applications is discussed. The material is shown to be patternable with accuracies that approach that of single-crystal silicon. Results indicate that Fotoform has several advantages over silicon in that it is less brittle, can easily accommodate fibers, and can be assembled using ultraviolet-curable epoxies. Results for producing single-component arrays of from 6 to 32 multimode fibers are presented.<<ETX>>