Accession Number : AD0282296

Title :   RESEARCH AND INVESTIGATION OF MATERIALS FOR LASER APPLICATIONS.

Descriptive Note : Interim engineering rept., 1 May-31 Jul 62,

Corporate Author : ELECTRO-OPTICAL SYSTEMS INC PASADENA CALIF

Personal Author(s) : Yamakawa,K. A.

Report Date : 13 AUG 1962

Pagination or Media Count : 37

Abstract : Rare earth chelates were synthesized and investigated for fluorescence at room and at liquid N temperature in the pure state and dissolved in liquid and plastic hosts. Fluorescence was observed in the case of Eu(3+) and Sm(3+) for both tris benzoyl acetonate dihydrate and the tris dibenzoyl methide. No fluorescence was observed in the chelates of Nd(3+), Tm(3+) using the above ligands. Specific absorption coefficient measurements of the complexing agents were extremely high. Work done on the growth of single crystal solid solutions of chelates in organic crystals revealed the problem of solubility since doping levels obtained were very low. X-ray analysis of crystal structure is being used to aid in solving this problem. Nd doped in porous Vycor showed fluorescence. (Author)

Descriptors :   (*RARE EARTH ELEMENTS), (*CHELATE COMPOUNDS), (*METALORGANIC COMPOUNDS), (*LASERS), ACETYL RADICALS, ACETONES, PHTHALOCYANINES, PHTHALATES, CHROMIUM COMPOUNDS, ALUMINUM COMPOUNDS, EPOXY RESINS, PLASTICS, GLASS, FLUORESCENCE, LUMINESCENCE, ABSORPTION, SOLIDS, ORGANIC COMPOUNDS, ACIDS, CRYSTALS, GROWTH(PHYSIOLOGY), ULTRAVIOLET SPECTROSCOPY, SYNTHESIS, MATERIALS

Distribution Statement : APPROVED FOR PUBLIC RELEASE