Abstract: A spectral imaging system includes an objective lens system, an optical splitter, a dispersion system, and an optical combiner. The optical splitter is arranged to be in an optical path of an object being imaged through the objective lens system to provide an imaging optical path and a spectrometer optical path. The dispersion system is arranged in the spectrometer optical path. The optical combiner is arranged in the imaging optical path and a path of dispersed light from the dispersion system to combined dispersed light with a corresponding optical image of the object.

Abstract: The present invention is directed to composite particles that react with a small and adjustable input energy. The ignition threshold depends primarily upon reactant spacing and chemistry, not overall particle size. Combustion properties, such as burn duration and temperature, are controlled by adjusting particle size or reactant composition. The best performance is achieved by selecting reactants with strong intermetallic formation reaction and that combust in different phases (condensed vs gaseous). These particles are fabricated by various methods, including physical vapor deposition, or ball milling. The concept of purposefully decoupling ignition and combustion properties by fabricating particles where ignition is determined by reactant spacing and/or composition and combustion is determined by adjusting particle size and/or composition is described. Combinations of specific reactants, such as Al, Zr, Ti, Mo, Mg, B, Li, etc.