Up-conversion emission in violet from yellow in Nd3+:SiO2TiO2-Al2O3, sol-gel glasses

被引：10
|
作者：
Xiang, Q [1 ]
Zhou, Y [1 ]
Lam, YL [1 ]
Chan, YC [1 ]
Kam, CH [1 ]
Ooi, BS [1 ]
Zhang, HX [1 ]
Buddhudu, S [1 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Photon Res Grp, Singapore 639798, Singapore
来源：
MATERIALS RESEARCH BULLETIN | 2000年 / 35卷 / 09期
关键词：
glasses; sol-gel chemistry; luminescence;
D O I：
10.1016/S0025-5408(00)00340-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper reports an up-conversion emission in violet (408 nm) from Nd3+-doped 93SiO(2):7TiO(2): 20AlO(1.5) glasses synthesized by the sol-gel process. Upon excitation at 583 nm (I-4(9/2)-->(4)G(5/2)), a bright violet up-conversion emission at 408 nm has been observed. The behavior of the up-conversion luminescence has been compared with that of the normal luminescence at both 408 and 1064 nm. The results show that while no concentration quenching for up to 2 mole Nd content is observed for the up-conversion emission, such an effect can be observed for the normal luminescence cases. Although the up-conversion luminescence has a shorter lifetime and weaker intensity, it is of use to the development of sol-gel glass-based waveguide lasers operating at the violet wavelength. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1571 / 1578
页数：8
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