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Characterization of high power flashlamps and application to Nd:glass laser pumping

Description: Detailed spectral and temporal measurements of the output radiation from Xe flashlamps are reported together with their use in predicting the pumping efficiency of Nd-doped laser glass. We have made absolute spectral-intensity measurements for 0.5, 1.5, and 4.2-cm-bore flashlamps for input powers ranging from 5 to 90 kW/cm/sup 2/ and pulselengths of 600 ..mu..s. Under quasi-stationary conditions these flashlamps emit essentially identical spectra when excited at equal input power per unit-area … more
Date: January 17, 1986
Creator: Powell, H. T.; Erlandson, A. C. & Jancaitis, K. S.
Partner: UNT Libraries Government Documents Department
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Aryl Bridged 1-Hydroxypyridin-2-one: Effect of the Bridge on the Eu(III) Sensitization Process

Description: The efficiency of Eu3+ luminescence by energy transfer from an antenna ligand can be strongly dependent on the metal ion coordination geometry. The geometric component of the Eu(III) sensitization has been probed using series of tetradentate 1,2-HOPO derivatives that are connected by bridges of varying length and geometry. The ligands are N,N'-(1,2-phenylene)bis(1-hydroxy-6-oxo-1,6-dihydropyridine-2-carboxamide) for the ligand (L{sup 1}), 1-hydroxy-N-(2-(1-hydroxy-6-oxo-1,6-dihydropyridine-2-ca… more
Date: June 17, 2009
Creator: D'Aleo, Anthony; Moore, Evan G.; Szigethy, Geza; Xu, Jide & Raymond, Kenneth N.
Partner: UNT Libraries Government Documents Department
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Instantaneous Velocity Profile Measurement by Photography

Description: An apparatus is described for using phosphorescent particles to enable photographic determination of qualitative and quantitative instantaneous velocity profiles in flowing liquids. Phosphor and film data are tabulated, and factors to be considered in analysis ot the photographs are discussed. (J.R.D.)
Date: August 17, 1959
Creator: Hoffman, H. W.
Partner: UNT Libraries Government Documents Department
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