Title :
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
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;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2009.2022344
