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Excited-state absorption and stimulated emission of tetrahedral Co2+ ion in LiGa5O8

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Abstract.

Differential absorption spectra measurements of tetrahedral Co2+-doped LiGa5O8 have been made using a ps pump-probe technique. The stimulated emission from the 4T1(4P) level to the 4A2(4F) and 4T2(4F) states is observed to be overlapped by the excited-state absorption. The excited-state absorption is tentatively assigned to transition from the 4T1(4P) level of the Co2+ ion to the conduction band of LiGa5O8. For Co2+:LiGa5O8, laser operation is expected to be possible in the vicinity of 720 nm and in the 860–970 nm spectral region.

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Authors and Affiliations

  1. International Laser Center, Belarusian State Polytechnical Academy, 65 F. Skaryna Ave., Bld. 17, 220027 Minsk, Belarus (Fax: +375-17/2326-286, E-mail: yumashev@ilc.unibel.by), , , , , , BY

    K.V. Yumashev, N.N. Posnov & V.P. Mikhailov

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  1. K.V. Yumashev
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  2. N.N. Posnov
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  3. V.P. Mikhailov
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Received: 5 June 1998 / Revised version: 20 October 1998 / Published online: 19 May 1999

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Yumashev, K., Posnov, N. & Mikhailov, V. Excited-state absorption and stimulated emission of tetrahedral Co2+ ion in LiGa5O8. Appl Phys B 69, 41–44 (1999). https://doi.org/10.1007/s003400050767

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  • DOI: https://doi.org/10.1007/s003400050767

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