Shifeng Zhou et al 2008 Nanotechnology 19 015702 doi:10.1088/0957-4484/19/01/015702
Shifeng Zhou1,2, Nan Jiang3, Huafang Dong4, Heping Zeng4, Jianhua Hao2 and Jianrong Qiu1
Show affiliationsTransparent Ni2+-doped Li2O–Ga2O3–SiO2 glass ceramics (GCs) were prepared and characterized. By controlling the size of the nanocrystals, the infrared luminescence is tunable. It could be ascribed to alteration of the crystal field strength Dq of octahedral Ni2+, which is due to the changes of the lattice parameters. The change in optical signals at telecommunication bands when the seed beam passes through the bulk sample with or without 980 nm excitation was also demonstrated for the first time. The coefficient of the change in optical signals at 1.3 µm is calculated as 0.26 cm−1. The changes in optical signal have shown similar wavelength dependence on the luminescence property.
78.55.Qr Amorphous materials; glasses and other disordered solids
78.67.Bf Nanocrystals and nanoparticles
84.40.Ua Telecommunications: signal transmission and processing; communication satellites
Issue 1 (9 January 2008)
Received 18 September 2007, in final form 24 October 2007
Published 29 November 2007
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