Tunable room-temperature cw laser action in Cr3+: GdScGa-Garnet |
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| Authors: | B Struve G Huber V V Laptev I A Shcherbakov E V Zharikov |
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| Institution: | 1. Institut für Angewandte Physik, Universit?t, Jungiusstrasse 11, D-2000, Hamburg 36, Germany
2. P. N. Lebedev Institute, Leninski prospect 53, SU-117924, Moscow, USSR
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| Abstract: | We report for the first time on tunable room temperature cw laser action of a transition metal laser material. In Cr3+:GdScGa-garnet crystals almost the total fluorescence is channelled into the broad band4 T 2→4 A 2 transition. The fluorescence lifetime is τ=120 μs. Laser pumping in the blue-green and yellow-red spectral range yields pump thresholds around 250 mW and slope efficiencies up to 11%. The wavelength of the free running Cr3+ laser is centered at 777 nm. |
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