Blue continuously pumped upconversion lasing in Tm:YLiF[sub 4]

Herbert, T.; Wannemacher, R.; Macfarlane, R.M.; Lenth, W.
May 1992
Applied Physics Letters;5/25/1992, Vol. 60 Issue 21, p2592
Academic Journal
Demonstrates the blue upconversion laser action in Tm:YLF on two different transitions. Fabrication of the crystal; Combination of the dyer laser and Ti:sapphire laser beams; Observation of a blue laser emission; Illustration of the upconversion excitation of G[sub 4]; Estimation of the threshold inversion.


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