Recent experiments at inrad have enabled us to increase selectivity for terminal chlorination of alkanes >25 fold bysorbing the alkanes on some conventionally synthesized zsm-5zeolites. selectivity varied dramatically depending on the source of the zeolite although they had similar bulk properties.… More

This phase i effort will endeavor to develop the design of a hand held, battery operated instrument capable of numerically displaying highly accurate resistance and temperature readings. a digital rather than analog approach is proposed. an internal stabilization scheme is used to isolate sensitive… More

A research program is proposed to develop a growth process for high quality titanium carbide single crystals for use as substrates for the deposition of silicon carbide thin films. high purity tic will be produced by the self-propagating high temperature synthesis since feed stock of adequate purity… More

A major roadblock to the widespread application of photochemistry of molecules on solid surfaces is the inefficient use of light in current technology. the best systems use only 5-10% of the available light. our objective is to develop a rotating fluidized bed, with a light source at the core, as a… More

One of the most difficult problems in designing multilayer electronic and optical devices is proper thermal modeling of the microstructures. this is due to the lack of data regarding thermal properties of thin films. a research group at the university of rochester has recentlydemonstrated that the… More

The advent of high power excimer lasers and synchrotron sources of intense vacuum ultraviolet (vuv) radiation has created a need for efficient reflective optics capable of surviving the very intense radiation of these sources. single crystal molybdenum is one of the most attractive candidates for… More

The widespread presence of chlorinated and nonchlorinated organics in both natural and treated water at many air force bases poses a serious environmental and health problem, since such ubiquitous halocarbons as trichloroethylene (tce) and chloroform are carcinogenic and/or toxic. currently, the… More

An optical parametric oscillator (opo) can provide high-power, infrared tunable over a broad range. the development of opo devices has been limited by the scarcity of high-quality, non-linear crystals and low laser-damage threshold. zngep2 single crystals have an exceptionally high figure of merit… More

Two methods for growing large beta-SiC proposed: (l) top-seeded solution growth under high pressure and (2) sublimation. We believe these two are the most promising techniques for producing large hauls, of beta-SiC, suitable for use as substrates for epitaxial growth of beta-SiC thin films. In the… More

The widespread presence of chlorinated and nonchlorinated organics in groundwater at many government installations poses a serious environmental and health problem, with particular attention being drawn to trichlorethylene (tce) as a common carcinogenic contaminant. monitoring of the tce contaminant… More

We propose to grow a zeolite film (membrane) on a polymer film. to accomplish this tetralkyl ammonium ion templates for initiating zeolite growth will be attached to the surface of the polymer film by long hydrocarbon chains. thezeolite as it forms will grow a channel around the hydrocarbon chain.… More

This grant is for the development of a solid state laser light source, operating at a wavelength of 213 nm, for use in photorefractive keratectomy or corneal shaping. successful development of such a source will eliminate the requirement for toxic gas used in current excimer laser systems and may… More

The collection and focussing of x rays and vacuum ultraviolet light (vuv) from the sun and other bodies in oursolar system requires grazing incidence mirrors with excellent surface figures, low scatter, low surface roughness and accurate focal lengths. the manufacture of aspheric mirrors with the… More

Highly selective transformations are of great importance to the chemical industry because they avoid costly separations and reduce waste. to demonstrate the feasibility of molecular imprinting using inorganic systems, researchers are preparing a stereoselective catalyst for the photocatalytic… More

Fullerenes form a series of new allotropes of carbon that have a myriad of unusual properties. Fullerene research has seen explosive growth since 1990 when C60 was isolated from carbon soot. However, the prohibitively high price of pure C60 ($2000/g) is a major obstacle to fullerene research and… More

ZnGeP2 single cyrstals have outstanding nonlinear and optical properties that make them the most attractive candidate for optical parametric oscillators (OPO) and amplifiers (OPA) capable of producing tunable laser radiation in the 2.5 to 13 micron region. The development of ZnGeP2-based devices has… More

Although several organic nonlinear single crystals have been reported to have exceptionally high figures of merit compared with the best inorganic crystals available, organic nonlinear crystals are not now being used in industrial, scientific, defense, and aerospace laser systems. this is… More

Efficient generation of the harmonics of important lasers such as nd:yag (1064nm) and ti:sapphire (700-900 nm) depends upon the availability of single crystals which exhibit large nonlinear coefficients, high optical transparency, high laser damage threshold, and good physical properties. kdp,… More

Silver thiogallate, AgGaS2[sub], is an attractive nonlinear crystal for the generation of tunable laser radiation from 2 to 12 microns. Its application is limited by surface and bulk absorption. It is proposed to address this absorption problem by characterizing single crystals grown from… More

AgGaS2 crystals have attractive nonlinear properties. However, their low surface laser damage threshold limits their application for the generation of tunable laser radiation from 2 to 12 microns. We propose to grow single crystals, anneal them with a new process, and characterize the… More

Researchers are designing, constructing, and evaluating a 3-12 m narrowband light source based on an optical parametric oscillator/optical parametric amplifier pair (opo/opa), consisting of zngep2 crystals that are pumped by a tunable opo. the tunable opo, which is itself pumped by a nd:yag laser,… More

Zngep2 single crystals have outstanding nonlinear and optical properties that make them the most attractive candidate for optical parametric oscillators and amplifiers capable of producing tunable laser radiation in the 2.5 to 13 m region. the development of zngep2 crystals has been hampered by… More

121 Development of Cadmium Germanium Arsenide Crystals--INRAD, Inc., 181 Legrand Avenue, , Northvale, NJ 07647-2404; (201) 767-1910 Dr. Warren Ruderman, Principal Investigator Mr. James L. Greco, Business Official DOE Grant No. DE-FG02-97ER82411 Amount: $74,995 There is a need for… More

A novel concept is proposed for a laser spectrometer for measuring trace amounts of chemical species. The spectrometer will be based on a unique laser source that is continuously tunable in the infrared from 3.7 to 11 um and which possesses spectra output linewidth on the order of 0.01c,1. The… More

121 Development of Cadmium Germanium Arsenide Crystals--INRAD, Inc., 181 Legrand Avenue, , Northvale, NJ 07647-2404; (201) 767-1910 Dr. Warren Ruderman, Principal Investigator Mr. James L. Greco, Business Official DOE Grant No. DE-FG02-97ER82411 Amount: $74,995 There is a need for high figure… More

For many ultraviolet applications, beta-barium borate (BBO) is the material of choice for harmonic generation due to the outstanding nonlinear properties, ultraviolet transparency, and mechanical robustness of the single crystals. Despite these attractive features, issues that limit the usefulness… More

This Small Business Innovation Research (SBIR) Phase I research project will develop and demonstrate a prototype information retrieval application that creates a customized view of a domain ontology to assist users in retrieving relevant documents from a collection of information. The ontology will… More

Accurate projection of costs remains an intractable problem in the defense industry despite more than a decade of focus on affordability. The impact to DoD acquisition programs, from cost escalation and the cost of countering capability shortfalls, runs to billions of dollars annually. The… More

The Small Business Innovation Research (SBIR) Phase I project will develop a Technology Assessment and Readiness Analysis System (TARAS), an intelligent inference toolset that utilizes novel semantic-based information technologies to link information from disparate sources. The information will be… More

This SBIR Phase II, Requirements-Based Cost Models, will develop software to enable cost managers to extrapolate costs of complex systems with higher fidelity than current approaches. Identifying the true costs of transitioning technologies from concept to production is complicated by many… More