Chinese Journal of Lasers, Volume. 37, Issue 2, 554(2010)
Near- and Mid-Infrared Spectroscopic Properties of Tm3+-Doped Ge-Ga-S-CsI Glasses
Tm3+-doped chalcogenide glasses in Ge-Ga-S-CsI system were prepared and the properties of glasses including density,absorption spectrum,emission spectra and fluorescence life in the near- and mid-infrared spectral region under 800 nm excitation were measured. The optical parameters such as intensity parameter Ωi (i=2,4,6),predicted spontaneous A,radiative transition rate β and lifetime τrad of Tm3+ in Ge-Ga-S-CsI glasses and so on by means of Judd-Ofelt theory according to absorption spectrum were calculated. The fluorescence spectra were investigated with the different Tm3+ ion concentration under 800 nm excitation. Also,the emission cross-section at 1.8 μm and 3.8 μm was found using the theory of McCumber and the Futchbauer- Ladenburg equation respectively.
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Zhang Pengjun, Dai Shixun, Peng Bo, Xu Tiefeng, Nie Qiuhua, Zhang Xianghua, Wang Xunsi. Near- and Mid-Infrared Spectroscopic Properties of Tm3+-Doped Ge-Ga-S-CsI Glasses[J]. Chinese Journal of Lasers, 2010, 37(2): 554
Category: materials and thin films
Received: Feb. 27, 2009
Accepted: --
Published Online: Feb. 3, 2010
The Author Email: Pengjun Zhang (jasonzpj@163.com)