Title: Up-conversion luminescence of Er3+ ions in lead-free germanate glasses under 800 nm and 980 nm cw diode laser excitation
Authors: J. Janek, R. Lisiecki, W. Ryba-Romanowski, J. Pisarska, W.A. Pisarski
Journal: Optical Materials
Publication type: article
DOI: 10.1016/j.optmat.2017.03.045