RESEARCH AND INVESTIGATION OF MATERIALS FOR LASER APPLICATIONS.
Fina rept. 30 Apr 62-30 June 63,
ELECTRO-OPTICAL SYSTEMS INC PASADENA CALIF
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This report describes the results of a study for the preparation and characterization of optimized solid state materials for laser applications. Primary emphasis was placed on the rare-earth organic chelates, but also included the develop ment of special glasses as host materials for rare-earth ions. The rare-earth ions and ligands studied were Eu3, Nd3, Er3, Tb3, Sm3, and Pr3 in conjunction with the ligands of acetyl acetone, trifluoroacetylacetone, thenoyl tri fluoroacetonne, ethylacetoacetate, dibenzoyl methane, benzoylacetone, phthalocyanine, and prophyrin. Moderate to high intensity fluores cence emission was observed for the chelates of europium, terbium, and samarium. Halogenation was found to improve the fluorescence emission. A host material study including molecular organic crystals, plastics, and organic liquids was made. A glass host material having a high fluorescence efficiency when doped with neodymium ions was developed. Glass matrices capable of being pumped both in the visible and ultraviolet when doped with neodymium ions were also developed. Author