Light emitting paints could have many important applications, one of which is improved safety in transportation. the paint is based on specially prepared granuals that are photoluminescent, activated by infrated radiation available from headlights. it appears that these materials will chargeup fromt… More

In order to demonstrate that a fundamental basis can be established for practical efficient in situ hydrogen generation from water, quantex proposes a new approach to this attractive energy alternative through the development of a model for, and experimentation with specially prepared electrodes… More

Electroluminescent (el) lamps have been used in a number of applications, particularly in large and small display systems and for instrumentation lighting. these, and other, applications would increase if el lamps could be improved as to their brightness, lifetime and uniformity of intensity over… More

The availability of fiber optics opens the way of integrating photonic components into the fiber; in other words perform as many functions as possible on the optical signal itself. quantex has developed some optical materials which have unusual properties. the particular materials display large… More

New materials developed by quantex in 1985 show greatly improved properties for application to optical computers. a class of electron trapping (et) materials has been generated which, upon trap-charging with visible light, maintains filled traps indefinitely. near-infrared light (800 nm to 1200 nm)… More

New photonic solid state materials have been discovered by quantex. the new materials display large electron trapping (et) and are very efficient. they readily display optical read/write/erase memory characteristics and appear to promise optical switching. the energy is made available through the… More

Recently high efficiency phosphors have been developed at quantex. these materials contain extremely reproducible traps, therefore they are called et materials. the electron trapping from visible light produces extremely long term storage, which can be instantly interrogated by infrared to produce a… More

A new class of optical solid state materials have been developed. the new materials display large electron trapping (et) and are very efficient. they could be used for optical read/write/erase memories and for optical computations. for optical processing the traps in the et materialfs can be filled… More

The proposed project will demonstrate the feasibility of employing electron trapping (et) materials with fiber optics filaments for use as microprobe radiation dosimeters.the et materials tm can be interrogated by near-infrared to produce visible output scalable to radiation doses at the fiber tip.… More

This proposal addresses the feasibility demonstration of an optical memory approach which is inherently amendable to multi-level-digital or analog optical storage. recent quantex materials developments have shown that some of its new electron-trapping (et) materials can provide all-optical write,… More

Large area (unlimited size) two-dimensional position-sensitive (about 0.1mm) solid-state nuclear particle detectors are proposed for feasibility investigation using quantex-developed electron-trapping (et)materials. impingement of high-energy (compared to 2ev) nuclear particles or ionizing photons… More

New materials to directly upconvert 1 to 12 micron infrared images to visible have been developed by quantex in the past year. these materials are a new group of doped semiconductors which have purposely tailored electron trap depths selected from 85 mev to 1.3 ev. once the traps are filled by a… More

Radon found in indoor air presents a greater radiological health hazard to the greatest population than any other radiation source. quantex corporation's objective is to develop a very low cost, featherweight, mailable, alpha-particle dosimeter medium that can be employed by the general population… More

Present techniques for obtaining information from sequenced electrophoresis gels rely heavily on x-ray film as the recording medium. such film suffers from limited dynamic range, nonlinear responsivity, and time-consuming development techniques. this project involves new recordingmedia for an… More

We propose the use of new electron trapping materials developed by quantex corporation to synthesize a 3d mass storage based on a volume holographic structure. the proposed 3d mass storage is expected to demonstrate the following features: erasability and real-time operation, storage capacity as… More

Accurate determination of absorbed dose during radiation therapy is extremely important in insuring that the maximum radiation dose is delivered to a cancerous region with minimum damage to surrounding tissue, at present, the dose is determined theoretically and verified using thermoluminescent… More

A new, infrared-stimulable, electron-trapping (et(tm)) storage phosphor has been found that is extremely sensitive to x-ray radiation. such radiation populates electron traps in the material, which can retain the information indefinitely. the number of electrons in the traps is proportional to the… More

A high resolution, high performance cathode ray tube-charge coupled device imaging system is proposed. phase i efforts will focus on demonstrating the feasibility of fabricating a new high efficiency inorganic thin film phosphor on a fiber optic faceplate, a necessary component in such an… More

We will review and evaluate existing architectures for optical memories. the limiting factors will be identified. we will further propose and theoretically evaluate new potential architectures for optical memories. new architectures are anticipated to demonstrate the following features: 10(15) bits… More

A new media for recording tritium and (14)c radiation patterns in autoradiography is proposed. detector screens will be fabricated from electron trapping (et(tm)) materials, and sensitivity, dynamic range, resolution and retention of the recorded information will be measured. read-out systems will… More

We proposed herein an integrated spatial light modulator (slm) employing quantex electron trapping (et) materials. theproposed spatial light modulator offers unique advantages over other slm devices, such as: capability of converting incoherent to coherentlight; capability of functioning as a… More

We propose using electron trapping (ettm) materials for the implementation of the interconnection weight matrix (iwm) in an of using et materials is that they offer a large storage capacity, by which 1.6x10 to the 10 power reconfigurable interconnections are possible. the proposed et electro-optic… More

We will develop a highly sensitive imaging plate based on etphosphors and read-out system for in vivo and in vitro autoradiography. it is expected that the plates will have the capability of recording images produced by beta particleemission from (3)h, (125)i and (14)c, the principal radioactive… More

This project investigates a novel, fiberoptic sensor for high-temperature environments in which each eigenstate in a polarization-preserving fiber forms an interferometer to sense the temperature and the other causes of optical-path-length changes, such as strain and pressure. this fiberoptic sensor… More

Pre-treatment planning in radiation oncology involved the accurate determination of absorbed dose within tissue equivalent phantoms proir to patient treatment. currently, lif tld's are used for single-point absorbed dose measurements within phantoms and radiographic film, which can be interleaved… More

An emerging technique for radiography involved the use of storage phosphor systems. with these systems, it is possible to directly obtain x-ray images which are superior to digital film scanners and digital fluoroscopy systems. however, the information transfer characteristics of the commercial… More

The aim of the work is to demonstrate the feasibility of employing quantex's electron trapping (ettm) materials to record protein crystallographic patterns. a secondary aim is to evaluate appropriate read-out systems for this stored information. this new technology should considerably simplify data… More

Commonly used periapical film requires very high radiation exposures to obtain high quality radiographic images for diagnosis of dental disease. the primary reason for the high exposures is that an intensifying screen is not used with the film to avoid loss of resolution. since film does not absorb… More

SPATIAL LIGHT MODULATORS (SLMs) PLAY A CRITICALLY IMPORTANT ROLE IN OPTICAL SIGNAL PROCESSING AND OPTICAL COMPUTING. THE OBJECTIVE OF THIS PROPOSED WORK IS TO DEVELOP A NOVEL ELECTRICALLY AND OPTICALLY DUALLY-ADDRESSABLE SLM USING QUANTEX ELECTRON TRAPPING (ET) MATERIALS. IN ADDITION TO ITS FAST… More

We propose to develop a novel optical wavelet correlator for automatic recognition of cluttered targets. Instead of computing the correlation between the target and the reference patterns, the optical wavelet correlator computes the correlation between the wavelet transform coefficients of the… More

The objective of this proposed work is to develop a novel electron beam addressed emissive SLM which combines high performance polycrystalline electron trapping (ET) materials with an advanced field-emitter array. ET materials prossess properties of fast response time (~10 nsec.), high resolution… More

We propose to develop a bit-plane oriented three-dimensional (3-D) optical memory based on stacked-layer transparent electron trapping (ET) thin films. The key feature of the proposed 3-D memory is its page addressability. By suitably controlling a voltage applied normal to each of the ET film… More

The fundamental limitations of optics in parallel processing systems have recently become understood. when a parallel optical computer approaches its parallel speed limitation, its performance can only be boosted by increasing the serial processing speed of each processing element. recently, a novel… More

We propose to develop novel techniques that enhance the detection and indentification of cluttered targets using wavelet transform (WT) techniques. Two approaches will be explored. The first approach characterizes various clutters by suitably selected wavelet packets such that the WT coefficients… More