TY - JOUR T1 - Nucleation and crystallisation behaviour of transparent, erbium III doped, oxyfluoride glass ceramics for active photonic devices JO - Physics and Chemistry of Glasses PY - 2001/06/01 AU - Kukkonen LL AU - Reaney IM AU - Furniss D AU - Seddon AB ED - VL - 42 IS - 3 SP - 265 EP - 273 Y2 - 2025/03/15 ER -