K.L. Saenger, F. Tong, et al.
Review of Scientific Instruments
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.
K.L. Saenger, F. Tong, et al.
Review of Scientific Instruments
M.-P. Bernal, H. Coufal, et al.
Applied Optics
W.P. Risk, W. Lenth
Applied Physics Letters
W.P. Risk, R. Pon, et al.
Applied Physics Letters