Abstract We investigate the up-conversion luminescence spectra of Ho3+-Yb3+ co-doped materials excited with two types of laser. It is found that the efficiency of green emission (5S2－5I8) can be enhanced by restraining the transition of 5S2－5I7 since the two types of radiation both start on the 5S2 level. We propose an important approach to enhance an expected up-conversion emission.
Received: 14 August 2001
Revised: 18 October 2001
Accepted manuscript online:
PACS:
78.55.-m
(Photoluminescence, properties and materials)
Fund: Project supported by the Foundation of Education Commission of Hunan Province, China (Grant No. 00C070).
Cite this article:
Xiao Si-Guo (肖思国), Yang Xiao-Liang (阳效良), Liu Zheng-Wei (刘政威) New approach to enhance the up-conversion efficiency in the Ho3+-Yb3+ co-doped system 2002 Chinese Physics 11 188
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