钕玻璃的光谱性质

本文分析了Nd³⁺在玻璃中的stark分裂情况,描写了确定荧光能级的实验方法,并给出了钕在四种硅酸盐玻璃中亚稳态和基态能级Stark分裂的实验结果。同时,对十三种不同成份的玻璃,通过光谱实验确定了Nd^{3+ 4}F_3/2态的辐射和无辐射跃迁速率,受激发射截面σ,辐射量子效率η,荧光分支比β和亚稳态寿命τ等激光常用参数。并对实验结果进行了讨论。 关键词：

SPECTRAL PROPERTIES OF Nd3+ IN GLASS

This paper analyses stark splittings of Nd³⁺ in glasses. The experimental method of determining fluorescence levels is described and the experimental results of stark splittings of the metastable states and ground states for four types of Nd³⁺-doped silicate glasses are given. In addition, the radiative and non-radiative transition rate of the ⁴F_3/2 state, the stimmulative emission cross-section σ, the radiative quntum efficiency η, the fluorescence branching ratio β and the lifetime τ are also determined experimentally for thirteen types of Nd-doped glasses with different compositions. On the basis of experimental results, the relation between non-radiative transition rate and compositions of the hosts is discussed.