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Laser-excited luminescence in Ti-doped MgAl2O4 spinel (1990)

Bausá, L. E. ; Vergara, I. ; García-Solé, J. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 68 (1990), S. 736-740

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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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