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Proceedings Paper

Cr4+-doped Li2MgSiO4: a new potential tunable laser material with room temperature fluorescence lifetime greater than 100 um
Author(s): C. Anino; J. Thery; D. Vivien
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Paper Abstract

This paper deals with the synthesis and optical properties of a new compound Cr4+:Li2MgSiO4 which looks promising for tunable lasers applications. The emission is intensive and centered around 1190 nm, covering the range 1100 to 1400 nm. At low temperature, the fluorescence spectrum represents two zero phonon lines at 1109 nm and 1205 nm, attributed to the 3T2 and 1E levels, 1E lies 712 cm-1 below 3T2. The fluorescence lifetime exceed 100 s at room temperature and 400 microsecond(s) at 50 K. This is roughly one order of magnitude higher than the values obtained for all the others Cr4+ activated materials. A thermalization between the 3T2 and 1E levels can explain these outstanding properties.

Paper Details

Date Published: 1 November 1997
PDF: 4 pages
Proc. SPIE 3176, Tunable Solid State Lasers, (1 November 1997); doi: 10.1117/12.293477
Show Author Affiliations
C. Anino, Ecole Nationale Superieure de Chimie de Paris (France)
J. Thery, Ecole Nationale Superieure de Chimie de Paris (France)
D. Vivien, Ecole Nationale Superieure de Chimie de Paris (France)

Published in SPIE Proceedings Vol. 3176:
Tunable Solid State Lasers
Wieslaw Strek; Edward Lukowiak; Barbara Nissen-Sobocinska, Editor(s)

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