Journal of Inorganic Materials ›› 2012, Vol. 27 ›› Issue (7): 711-715.DOI: 10.3724/SP.J.1077.2012.11483

• Research Paper • Previous Articles     Next Articles

2.00 μm Emission Properties of Tm3+/Ho3+ Co-doped Chalcohalide Glasses

WEI Shu-Lin1,2, XU Yin-Sheng1,3, ZHANG Pei-Qing1,2, CHEN Fei-Fei1,2, NIE Qiu-Hua1,2, XU Tie-Feng1,2, DAI Shi-Xun1,2   

  1. (1. Laboratory of Infrared Material and Devices, Ningbo University, Ningbo 315211, China; 2. College of Information Science and Engineering, Ningbo University, Ningbo 315211,China; 3. The Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China)
  • Received:2011-08-08 Revised:2011-10-24 Published:2012-07-20 Online:2012-06-06
  • About author:WEI Shu-Lin. E-mail: yyyfffyyy@163.com
  • Supported by:

    International Science & Technology Cooperation Program of China (2011DFA12040); National Program on Key Basic Research Project (973 Program) (2012CB722703); National Natural Science Foundation of China; New Century Excellent Talents Project from Ministry of Education; Zhejiang Outstanding youth project; Ningbo Emerging Photoelectric Functional Materials And Devices Innovation Team Project; K.C. Wong Magna Fund in Ningbo University

Abstract: 2 μm laser has many potential applications on the medical surgery, laser radar, and pollution monitoring etc. Tm3+ and Ho3+ ions co-doped 70GeS2-20In2S3-10CsI chalcohalide glasses were synthesized by vacuumed melting- quenching technique. The DSC curves and Raman spectra showed that these glasses had good thermal stability and low phonon energy, respectively. The absorption and emission characteristics were evaluated with an emphasis on the 2.00 μm fluorescence from Ho3+: 5I75I8 transition. Under 808 nm excitation, the infrared emission bands extending from 1.80 μm to 2.10 μm can be seen on the emission spectra of the Tm3+ and Ho3+ ions co-doped glasses. This broad emission was consisted of two emission bands centered at 1.86 and 2.00 μm, corresponding to the optical transitions Tm3+:3F43F5 and Ho3+:5I75I8, respectively. At fixed Tm3+ ions concentration, the intensity of 2.00 μm emission increased with Ho3+ ions concentration increasing from 0.05mol% to 0.125mol%. The enhanced emission of Ho3+ ions gives another route to obtain the 2.00 μm infrared laser.

Key words: Tm3+/Ho3+ co-doped, chalcogenide glass, energy transfer

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