Abstract
codoped transparent glass ceramic containing nanocrystals was successfully prepared. After thermal treatment, emissions from the state of excited by 980 nm laser were greatly quenched by cross relaxation and the 700 nm luminescence from transition was strongly enhanced. A nearly monochromatic red luminescence band was observed. Based on the luminescence decay curves and Judd–Ofelt analysis, the strengthened cross relaxation played an important role in such phenomenon.
©2012 Optical Society of America
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