Cr4+-doped Li2MgSiO4: a new potential tunable laser material with room temperature fluorescence lifetime greater than 100 um

C. Anino; J. Thery; D. Vivien

doi:10.1117/12.293477

1 November 1997 Cr⁴⁺-doped Li₂MgSiO₄: a new potential tunable laser material with room temperature fluorescence lifetime greater than 100 μm

C. Anino, J. Thery, D. Vivien

Author Affiliations +

Proceedings Volume 3176, Tunable Solid State Lasers; (1997) https://doi.org/10.1117/12.293477
Event: Tunable Solid State Lasers, 1996, Wroclaw, Poland

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.

Citation Download Citation

C. Anino, J. Thery, and D. Vivien "Cr⁴⁺-doped Li₂MgSiO₄: a new potential tunable laser material with room temperature fluorescence lifetime greater than 100 μm", Proc. SPIE 3176, Tunable Solid State Lasers, (1 November 1997); https://doi.org/10.1117/12.293477

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