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2004•Journal of Applied PhysicsOpen access

1.48 and 1.84 μm thulium emissions in monoclinic KGd(WO4)2 single crystals

Frank Güell, Jna. Gavaldà, Rosa Maria Solé, Magdalena Aguiló, Francesc Dı́az, Miguel Á. Galán, J. Massons

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Abstract

By exciting at 788 nm, we have characterized the near infrared emissions of trivalent thulium ions in monoclinic KGd(WO4)2 single crystals at 1.48 and 1.84 μm as a function of dopant concentration from 0.1% to 10% and temperature from 10 K to room temperature. We used the reciprocity method to calculate the maximum emission cross-section of 3.0×10−20 cm2 at 1.838 μm for the polarization parallel to the Nm principal optical direction. These results agrees well with the experimental data. Experimental decay times of the H43→3F4 and F43→3H6 transitions have been measured as a function of thulium concentration.

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By exciting at 788 nm, we have characterized the near infrared emissions of trivalent thulium ions in monoclinic KGd(WO4)2 single crystals at 1.48 and 1.84 μm as a function of dopant concentration from 0.1% to 10% and temperature from 10 K to room temperature. We used the reciprocity method to calculate the maximum emission cross-section of 3.0×10−20 cm2 at 1.838 μm for the polarization parallel to the Nm principal optical direction. These results agrees well with the experimental data. Experimental decay times of the H43→3F4 and F43→3H6 transitions have been measured as a function of thulium concentration.

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Available abstract

By exciting at 788 nm, we have characterized the near infrared emissions of trivalent thulium ions in monoclinic KGd(WO4)2 single crystals at 1.48 and 1.84 μm as a function of dopant concentration from 0.1% to 10% and temperature from 10 K to room temperature. We used the reciprocity method to calculate the maximum emission cross-section of 3.0×10−20 cm2 at 1.838 μm for the polarization parallel to the Nm principal optical direction. These results agrees well with the experimental data. Experimental decay times of the H43→3F4 and F43→3H6 transitions have been measured as a function of thulium concentration.

Key concepts: Thulium, Monoclinic crystal system, Ion, Materials science, Dopant, Polarization (electrochemistry), Analytical Chemistry (journal), Atomic physics

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