2.7 μm emissions in Er3+: NaYF4 embedded aluminosilicate glass ceramics

Er 3+ doped NaYF 4 transparent aluminosilicate glass ceramic was prepared. X-ray diffraction and transmission electron microscopy confirmed the formation of NaYF 4 nanocrystals in glass matrix . Absorption spectra and Judd–Ofelt intensity parameters demonstrated the incorporation of Er 3+ into NaYF 4 nanocrystals. 2.7   μm emission due to the transition of 4 I 11/2 → 4 I 13/2 was achieved upon the excitation of a 980   nm laser diode . Visible emission spectra , decay curves at 1.53   μm and energy transfer mechanism were studied to elucidate 2.7   μm luminescent behaviors. Er 3+ doped NaYF 4 embedded aluminosilicate glass ceramic might provide a new choice for mid-infrared laser and amplifier.