Modeling Multiple Rare Earth-Doped System for White Light Generation

Author

Jiang, Chun ; Xu, Wenbin

Author_Institution

State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Shanghai Jiao Tong Univ., Shanghai, China

Volume

5

Issue

12

fYear

2009

Firstpage

431

Lastpage

437

Abstract

A numerical model of Tm³⁺-Tb³⁺-Eu³⁺ -co-doped system for white light generation is presented in this paper. The energy level, electron transition process and rate and power propagating equations are proposed to calculate fluorescence intensity of the system pumped by 359 nm laser. The numerical results reveal that our theoretical result is in good agreement with experimental result in literature. Optimal active ion concentrations are proposed for the system to emit red, blue and green lights which are mixed to generate white light for display and lighting system.

Keywords

colour displays; europium; fluorescence; lanthanum compounds; light sources; luminescent devices; optical pumping; phosphors; terbium; thulium; LaF₃:Tm³⁺,Tb³⁺,Eu³⁺; active ion concentration; color rendering index; display system; electron transition process; energy level; fluorescence intensity; lighting system; multiple rare earth-doped system; power propagating equation; wavelength 359 nm; white light generation; Electrons; Energy states; Equations; Fluorescence; Laser excitation; Laser theory; Laser transitions; Numerical models; Optical propagation; Power lasers; ${hbox{Eu}}^{3+}$; ${hbox{Tb}}^{3+}$ ; ${hbox{Tm}}^{3+}$; Display; theoretical model; white light;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2009.2022344

Filename

5331949