Year: 1994
Type: article
Abstract: The optical properties and temperature-dependent concentration quenching of Nd 3+ fluorescence have been investigated in heavy-metal and transition-metal fluoride glasses using steady-state and time-resolved laser spectroscopy. Judd-Ofelt parameters were derived from the absorption spectra and used to calculate the 4 F 3/2 to 4 I 11/2 stimulated-emission cross-section and the 4 F 3/2 radiative lifetime. From the thermal behaviour of lifetimes, a T 3 dependence for the non-radiative Nd-Nd relaxation processes has been found in the 15-100 K temperature range for the three families of fluoride glasses investigated, which is in agreement with a two-site non-resonant process.
Authors: R Balda, J Fernandez, A Mendioroz, J L Adams, B Boulard
Institution: University of the Basque Country
Language: English
Subfield: Ceramics and Composites
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1985237737