Advances in Glass and Optical Materials II: Ceramic by Mario Affatigato

By Mario Affatigato

Offers a state of the art selection of contemporary papers on glass and optical fabrics as provided on the sixth Pacific Rim convention on Glass and Optical fabrics. Sections on constitution and homes, optical functions, glass modeling, and commercial purposes are included.Content:

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The samples were then annealed below their glass transition temperatures. We have measured thermal and emission properties of the samples of identical size and shape. 3·5 time (s) Fig. 1. 6-μπι emission. 6-μιτι emission from the Se-based chalcogenide glasses would be suitable for the U-band applications. In the former reports,''2 Ge-As-Se series with small addition of Ga were used as hosts for Pr3+ doping, whereas in this study we have been interested chiefly in Ge-Sb-Se series, which have resulted in quite comparable emission properties to the Ge-GaAs-Se samples.

67 in amorphous chalcogenide dielectrics. Those glasses would then be (Ge, Si)-(Sb, As)-(S, Se) series. 6-μηι emission from Pr3+: (3F3,3F,i) —> 3H4 transition in the chalcogenide Ge-Sb-Se glasses. 67. Changes of the free volumes accompanied with the structural phase transitions from 2-dimensional layers to 3-dimensional networks would be responsible for the observations from the Ge-Sb-Se glasses with strong covalent bond nature. Thus, distribution of rare earth ions probed with the measured lifetimes is closely correlated with medium-range structural phase transitions of covalent chalcogenide glasses.

Strain, O. K. D. Rabuck, K. B. V. Ortiz, Q. G Baboul, S. Clifford. J. B. Stefanov, G Liu, A. Liashenko, P. Piskorz, I. L. Martin, DJ. Fox, T. A. Y. Peng, A. Nanayakkara, M. W. Gill, B. Johnson, W. W. Wong, C. A. Pople. , Pittsburgh, PA (2003). 8 0. Lindqvist, "Refinement of the Structure of 0C-TeO2," Ada Chem. Scand, 22, 977-82 (1968). 9 D. Cachau-Herreillat, A. Norbert, M. Maurin, and E. /. , 37, 352-61 (1981). A. A. B. Ross, T. C. Ermler "Ab initio relativistic effective potentials with spin-orbit operators.

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