1State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027
2Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
3Institute of Optoelectronic Materials and Devices, College of Information Engineering, China Jiliang University, Hangzhou 310018
Broadband Near-Infrared Emission from Transparent Ni2+-Doped Sodium Aluminosilicate Glass Ceramics
1State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027
2Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
3Institute of Optoelectronic Materials and Devices, College of Information Engineering, China Jiliang University, Hangzhou 310018
Abstract： Broadband near-infrared emission from transparent Ni2+-doped sodium aluminosilicate glass-ceramics is observed. The broad emission is centred at 1290nm and covers the whole telecommunication wavelength region (1100--1700nm) with full width at half maximum of about 340nm. The observed infrared emission could be attributed to the 3T2(F) → 3A2(F) transition of octahedral Ni2+ ions that occupy high-field sites in nanocrystals. The product of the lifetime and the stimulated emission cross section is 2.15×10-24cm2s. It is suggested that Ni2+-doped sodium aluminosilicate glass ceramics have potential applications in tunable broadband light sources and broadband amplifiers.
2006, Vol. 23 
