【摘要】 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Nd³⁺⁴F_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。更多还原

【Abstract】 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 4F3/2 state, the stimmulative emission cross-section a, 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.更多还原