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Imbeddability of certain 3-dimensional manifolds and polyhedra in S3

โœ Scribed by H. G. Bothe


Publisher
John Wiley and Sons
Year
1974
Tongue
English
Weight
777 KB
Volume
61
Category
Article
ISSN
0025-584X

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Absorption and fluorescence of Ho3+ IN L
โœ R. Reisfeld; A. Bornstein; J. Flahaut; M. Guittard; A.M. Loireau-Lozac'h ๐Ÿ“‚ Article ๐Ÿ“… 1977 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 202 KB

Absorption bands of Ho '\* in vitreous LazS3 -3GazS3 in the range 500 to 2000 nm were assigned. Excitation spectra reveal additional levels 5G6 and 5F3 obscured by the intrinsic absorption of the glass. The Ho3+ emission in chalcogenide glasses is more intense than in oxide gksses due to smaller non