Enhanced green upconversion emission of Er(3+) through energy transfer by Dy(3+) under 800 nm femtosecond-laser excitation.

Enhanced green upconversion emission of Er(3+) through energy transfer by Dy(3+) under 800 nm femtosecond-laser excitation. Research Abstract Details 

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Enhanced green upconversion emission of Er(3+) through energy transfer by Dy(3+) under 800 nm femtosecond-laser excitation. Abstract Text:

Ai-Hua Li,Qiang ,Zhi-Ren Zheng,Liang Sun,Wen-Zhi Wu,Wei-Long Liu,Heng-Zhi Chen,Yan-Qiang Yang,Tian-Quan ,

Er(3+) green upconversion (UC) emission corresponding to the transition of (4)S(3/2) ((2)H(11/2))-->(4)I(15/2) is enhanced in a Er/Dy-codoped LiNbO(3) crystal compared with Er-doped LiNbO(3) under 800 nm femtosecond-laser excitation at room temperature. The upconversion mechanisms are proposed based on spectral, kinetic, and pump-power dependence analyses. The energy-transfer efficiency from Dy(3+)((4)F(9/2)) to Er(3+)((4)F(7/2)) is 33%, which results in the enhancement of green UC emission. This energy transfer is advantageous for the Er(3+) UC emission sensitized by Dy(3+), especially in a low-phonon-energy host matrix.

Enhanced green upconversion emission of Er(3+) through energy transfer by Dy(3+) under 800 nm femtosecond-laser excitation. Publishing Authors By Initials

AH Li,Q ,ZR Zheng,L Sun,WZ Wu,WL Liu,HZ Chen,YQ Yang,TQ ,

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Enhanced green upconversion emission of Er(3+) through energy transfer by Dy(3+) under 800 nm femtosecond-laser excitation. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Optics letters

VOLUME: 33

Page Numbers: 693-5

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ISSN: 0146-9592

DAY: 1

MONTH: Apr

YEAR: 2008

Enhanced green upconversion emission of Er(3+) through energy transfer by Dy(3+) under 800 nm femtosecond-laser excitation. Information

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LANGUAGE: eng

NlmUniqueID: 7708433

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