Optical parameters and upconversion fluorescence in Tm3+/Yb3+-doped alkali-barium-bismuth-tellurite glasses.
Tm(3+)/Yb(3+)-doped alkali-barium-bismuth-tellurite (LKBBT) glasses have been fabricated and characterized. Density, refractive index, optical absorption, absorption and emission cross-sections of Yb(3+), Judd-Ofelt parameters and spontaneous transition probabilities of Tm(3+) have been measured and calculated, respectively. Intense blue three-photon upconversion fluorescence and near-infrared two-photon upconversion fluorescence were investigated under the excitation of a 980 nm diode laser at room temperature. Wide infrared transmission window, high refractive index and strong blue three-photon upconversion emission of Tm(3+) indicate that Tm(3+)/Yb(3+) co-doped LKBBT glasses are promising upconversion optical and laser materials.
Lin
Hai
H
Faculty of Chemical Engineering and Materials, Dalian Institute of Light Industry, Dalian 116034, PR China. lhai8686@yahoo.com <lhai8686@yahoo.com>
Liu
Ke
K
Lin
Lin
L
Hou
Yanyan
Y
Yang
Dianlai
D
Ma
Tiecheng
T
Pun
Edwin Yun Bun
EY
An
Qingda
Q
Yu
Jiayou
J
Tanabe
Setsuhisa
S
D005453:Fluorescence; D005898:Glass / Q000737:chemistry*; D007834:Lasers; D008672:Metals, Alkali / Q000737:chemistry*; D055095:Optics and Photonics; D013057:Spectrum Analysis; D013696:Temperature
D008672:Metals, Alkali