Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
68 (1990), S. 736-740
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The photoluminescence (excitation, emission, and fluorescence decay time) spectra of spinel (Ti:MgAl2O4) excited by pulsed Nd:YAG and dye lasers have been systematically investigated. Excitation into the T2g→Eg crystal-field transition of Ti3+ produces a broad infrared emission band at 805 nm which could, in principle, be used for tunable laser applications. Two different Ti3+ centers with lifetimes of 4.2 and 41 μs contribute to this emission. At the same time this IR band can also be observed under high-intensity excitation in the ultraviolet region (266 nm) via a two-photon process.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.346807
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