The ion assisted deposition (iad) process will be employed during deposition of dielectric coatings with improved erosion resistance. the objective of this effort is to demonstrate the commercial feasibility of the iad process to produce hard optical coatings. the effort will consist of a matrix of… More

Present uv filters can have very high spectral performance, but the best spectral performance generally requires use of materials and filter construction which are not well qualified for use in space and have marginal image quality. the objective of this effort is to improve this situation… More

Metal coatings deposited using conventional evaporation are unstable when exposed to such elements of the environment asmoisture, heat, and radiation. state-of-the-art space and astronomical applications, such as white-light, all- reflecting coronographs, require coatings with optimum properties.… More

Performance of present and planned space-borne remote sensing instruments could be significantly improved by the incorporation of thermally stable optical coatings. We propose to investigate the use of ion-assisted deposition (IAD) in the fabrication of large area narrowband interference filters… More

Thin film interference filters are available for isolating a narrow range of wavelengths from a broader wavelength spectrum with high signal to noise ratios. Ion assisted deposition (IAD) of refractory oxides produces filters that have high throughput, withstand harsh environments, are thermally… More