Ois Optical Imaging Systems, Inc.

Picometrix, Inc.

Matthew W Warmuth

Steven L Williamson

John A Vanderploeg

David Zimdars

Michael R Jones

Laurie D Lovshe

James V Rudd

Artur Chernovsky

The present invention includes a semiconductor epitaxial structure optimized for photoconductive free space terahertz generation and detection; and amplifier circuits for photoconductively sampled terahertz detection which may employ the optimized epitaxial structures.

Amplified photoconductive gate

An industrially hardened terahertz electromagnetic transmitter and receiver module ( ) is disclosed. The electromagnetic wave module has an optic ( ) which relays an optical pulse from the delivery fiber ( ) to the terahertz device. The relay optic ( ) allows for a greatly reduced optical spot size as compared to the output of the optical fiber. Thus, the sensitivity of the overall system is enhanced by improving the efficiency of the terahertz device. The relay optic ( ) allows the small spot of light to be aligned to the electromagnetic transmitter or receiver with sub-micron precision.

Compact fiber pigtailed terahertz modules

A liquid crystal display includes a patternable diffusing layer therein positioned between the display's substrates. The diffusing (or diffuser) layer includes a host material having a plurality of particles (e.g. substantially transparent spherical balls or spacers) provided therein in order to perform a diffusion function. The refractive index n.sub.p of the particles is different (i.e. .DELTA.n) from the refractive index n.sub.h of the host material by at least about 0.05, and .DELTA.n is preferably from about 0.05-0.15. In certain embodiments, photoimageable color filters, with diffusing particles embedded therein, function as discrete diffusing members across the passive substrate. In other embodiments, a substantially continuous diffusing layer with a transparent host, including spherical balls embedded therein, may be provided across the passive substrate between the substrate and the color filters. Still further, the diffusing layer with transparent host material may be provided between the common electrode and black matrix members on the passive substrate.

LCD with diffuser having diffusing particles therein located between

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Ann Arbor, MI, United States of America

Matthew W Warmuth