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Relaxation of longitudinal ultrasonic waves in some tellurite glasses

✍ Scribed by M.A. Sidkey; R.A. El Mallawany; A.A. Abousehly; Y.B. Saddeek

Book ID
114192868
Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
132 KB
Volume
74
Category
Article
ISSN
0254-0584

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πŸ“œ SIMILAR VOLUMES

Non-radiative relaxation of Ho3+ in vari
Non-radiative relaxation of Ho3+ in various tellurite glasses
✍ J. Hormadaly; R. Reisfeld πŸ“‚ Article πŸ“… 1977 πŸ› Elsevier Science 🌐 English βš– 353 KB

Non-radiative relaxation rates from 5Fa, 5Sz to 5Fs of Ho3+ \_ m three tellurite glasses were measured as a function of temperature. The expcrlmental behaviour of the nonradiative decay rate IV&") with temperature lies between two theoretical curves fitted to 4 and 5 phonons. Phonon frequencies were