Intense 1540 nm emission from Er doped Ce:YAG phosphor

Jian Xin Meng*, Kok Wai CHEAH, Zhao Pu Shi, Jin Qing Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

A very efficient energy transfer from Ce3+ to Er3+ in yttrium aluminum garnet (YAG) matrix is observed. The transfer gives about 1000 times enhancement to the Er3+ 1540 nm emission. This is due to efficient absorption by the allowed 4f-5d transition of Ce3+ ions then transfer to Er3+ ions via a matched energy level F 92 4. Thus the 1540 nm emission was strongly sensitized by exciting an allowed transition in an inorganic matrix. In fact, the 1540 nm emission was further enhanced via the cross-relaxation process F 52 2 →2 F72 (Ce3+), I 112 4 →4 I132 (Er3+). The result means that a new class of material, Ce Er:YAG, was produced and it potentially can be an efficient near-IR emitter.

Original languageEnglish
Article number151107
JournalApplied Physics Letters
Volume91
Issue number15
DOIs
Publication statusPublished - 2007

Scopus Subject Areas

  • Physics and Astronomy (miscellaneous)

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