OH-对Er3+掺杂Ge-Ga-S-CsI玻璃中红外荧光特性的影响

doi:10.3724/SP.J.1077.2011.00836

无机材料学报 ›› 2011, Vol. 26 ›› Issue (8): 836-840.DOI: 10.3724/SP.J.1077.2011.00836

OH^-对Er³⁺掺杂Ge-Ga-S-CsI玻璃中红外荧光特性的影响

孙杰, 聂秋华, 戴世勋, 吴礼刚, 宋宝安, 陈飞飞, 王国祥, 徐铁峰

(宁波大学信息科学与工程学院, 宁波 315211)

收稿日期:2010-10-11 修回日期:2010-11-29 出版日期:2011-08-20 网络出版日期:2011-07-14
作者简介:孙杰(1987-), 男, 硕士研究生. E-mail: sunsky0314@163.com
基金资助:
国家自然科学基金(60878042,60978058); 浙江省杰出青年基金(R1101263); 宁波市科技创新团队项目(2009B21007); 宁波大学王宽诚幸福基金

Effect of OH^- Content on Mid-infrared Emission Properties in Er³⁺-doped Ge-Ga-S-CsI Glasses

SUN Jie, NIE Qiu-Hua, DAI Shi-Xun, WU Li-Gang, SONG Bao-An, CHEN Fei-Fei, WANG Guo-Xiang, XU Tie-Feng

(College of Information Science and Engineering, Ningbo University, Ningbo 31521, China)

Received:2010-10-11 Revised:2010-11-29 Published:2011-08-20 Online:2011-07-14
Supported by:
The National Natural Science Foundation of China (60878042, 60978058); Zhejiang Provincial Science Fund for Distinguished Young Scholars (R1101263); The Ningbo Optoelectronic Materials and Devices Creative Team (2009B21007); K.C.Wong Magna Fund in Ningbo University

摘要/Abstract

摘要： 采用蒸馏提纯工艺制备了五组不同Er³⁺离子掺杂浓度的Ge-Ga-S-CsI玻璃样品, 测试了样品的折射率、红外透过光谱, 以及800nm激光泵浦下样品在2.85um处的中红外荧光光谱和荧光寿命, 计算了样品中OH^-在3um处的红外吸收系数以及Er³⁺离子与OH^-基团相互作用的强度参量KOH-Er, 讨论了OH^-根杂质对样品中红外荧光特性的影响. 结果表明: 蒸馏提纯工艺能有效降低玻璃样品中的OH^-残留量, 增强Er³⁺离子2.85um中红外荧光强度和荧光寿命. 计算得到KOH-Er值为1.08×10^-16cm⁴/s, 由于Er³⁺离子与OH^-之间单声子能量转移的高效性, 残存的少量OH?基团仍会影响2.85um荧光的强度.

关键词: OH^-, Er离子, 中红外荧光, 硫系玻璃

Abstract: A series of Er³⁺-doped chalcogenide glasses based on Ge-Ga-S-CsI system were prepared by melt-quenching technique with distillation processing. Properties including refractive index, infrared transmission spectra, 2.85um mid-infrared emission spectra and fluorescence lifetime under 800 nm laser excitation were measured. The infrared absorption coefficients of OH^- groups at 3um according to the infrared transmission spectra were calculated, and the constant KOH-Er, determined by the strength of interactions between Er³⁺ ions and OH^- groups in the case of energy transfer was also calculated. The effect of hydroxyl content on mid-infrared emission properties of glass samples was discussed. The results show that the remnants OH^- content of glass samples can be effectively reduced by the distillation processing. The 2.85um mid-infrared fluorescence emission intensity and fluorescence lifetime of Er³⁺ ions are also enhanced. The calculated constant KOH-Er is about 1.08×10^-16cm⁴/s. Because of the efficiency of energy transfer between Er³⁺ ions and OH^- groups, the remnants of a small amount of OH^- groups can still directly affect the intensity of 2.85um fluorescence.

Key words: hydroxyl ion, erbium, mid-infrared luminescence, chalcogenide glass

中图分类号:

TQ174

孙杰, 聂秋华, 戴世勋, 吴礼刚, 宋宝安, 陈飞飞, 王国祥, 徐铁峰. OH^-对Er³⁺掺杂Ge-Ga-S-CsI玻璃中红外荧光特性的影响[J]. 无机材料学报, 2011, 26(8): 836-840.

SUN Jie, NIE Qiu-Hua, DAI Shi-Xun, WU Li-Gang, SONG Bao-An, CHEN Fei-Fei, WANG Guo-Xiang, XU Tie-Feng. Effect of OH^- Content on Mid-infrared Emission Properties in Er³⁺-doped Ge-Ga-S-CsI Glasses[J]. Journal of Inorganic Materials, 2011, 26(8): 836-840.

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OH^-对Er³⁺掺杂Ge-Ga-S-CsI玻璃中红外荧光特性的影响

Effect of OH^- Content on Mid-infrared Emission Properties in Er³⁺-doped Ge-Ga-S-CsI Glasses

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