R.J. Reeves, R.M. Macfarlane
Journal of the Optical Society of America B: Optical Physics
Green laser emission at 551 nm was achieved in LiYF4: Er3+ by upconversion pumping with a near-infra-red diode laser at low temperature. Using a 2mm-long monolithic laser crystal the lasing threshold was reached with 34 mW of absorbed power from an AlGaAs diode-laser array. © 1989, The Institution of Electrical Engineers. All rights reserved.
R.J. Reeves, R.M. Macfarlane
Journal of the Optical Society of America B: Optical Physics
W.P. Risk
Journal of the Optical Society of America B: Optical Physics
C.W. Thiel, H. Cruguel, et al.
Physical Review B - CMMP
G.P. Flinn, K.W. Jang, et al.
Journal of Luminescence