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Direct evidence of energy transfer from Er3+ to Sm3+ in Er3+/Sm3+ co-doped system

✍ Scribed by Zhenyu Liu; Zhe Chen; Kezhi Zheng; Weiping Qin

Book ID
116387097
Publisher
Elsevier Science
Year
2012
Tongue
English
Weight
752 KB
Volume
543
Category
Article
ISSN
0009-2614

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## Abstract The radiative and nonradiative transitions of the first three excited levels of Er^3+^ doped in Ga~2~S~3~–GeS~2~–Sb~2~S~3~ glass were investigated. Particularly, we focused on the ^4^I~9/2~ and ^4^I~11/2~ which are the initial and final levels of mid‐infrared emission around 4 ¡m. The e