Dependence of spectroscopic properties on doping content and temperature of bismuth-doped lanthanum aluminosilicate glass
Chinese Optics Letters, Vol. 10, Issue 11, pp. 111602-111602 (2012)
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Abstract
The effects of bismuth doping content and temperature on the absorption property and near-infrared (NIR) luminescence of Bi-doped La2O3-Al2O3-SiO2 (LAS) glasses are presented. The emission intensity reaches the maximum when the Bi2O3 content in 3.0Bi-LAS is 1.83%. The emission spectra reach their peaks at 1 190 and 1 117 nm, with full-width at half-maximum (FWHM) values of 330 and 228 nm under 500 and 700-nm excitations, respectively. As the Bi2O3 content increases, the peak wavelengths and FWHMs of emission bands increase, but their lifetimes decrease. The lifetime of 2.0Bi-LAS is 460 ?s at 9 K, and is almost temperature independent until 350 K. The NIR emission of Bi in the system has strong resistance to thermal quenching from 9 to 350 K.
© 2012 Chinese Optics Letters
OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(160.0160) Materials : Materials
(160.2750) Materials : Glass and other amorphous materials
ToC Category:
Materials
Citation
Min Qian, Jimeng Cheng, and Lili Hu, "Dependence of spectroscopic properties on doping content and temperature of bismuth-doped
lanthanum aluminosilicate glass," Chin. Opt. Lett. 10, 111602-111602 (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-11-111602
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