【摘要】 本文测定了Nd_xY_1-xAl₃（BO₃）₄（NYAB）激光自倍频复合功能晶体的室温吸收光谱与荧光光谱。应用Judd-Ofelt理论测量了激光自倍频方向的七条谱带的振子强度;拟合出三个强度参数Ω₂、Ω₄、Ω₅;计算出了激光亚稳态⁴F_3/2的辐射寿命τ和⁴F_3/2→⁴I_J/2四条光谱线的一系列激光参数。报导了Cr:Nd:YAB晶体中Cr³⁺对Nd³⁺的敏化作用的初步结果。更多还原

【Abstract】 This paper reports the absorption and fluorescence spectraof the laser nonlinear crystal Nd_xY_1-xAl₃（BO₃）₄ （NYAB） at room temperatu-re. Following the Judd-Ofelt theor, ywe have obtained the oscillator streng-th for seven bands and three intensity parameters Ω₂, Ω₄ and Ω₆. The radia-tive lifetime of metastable state ⁴F_3/2 and a series of laser coefficients of⁴F_3/2→⁴I_5/2 transitions were also calculated. The primary results for theinvestigation of the Cr-Nd sensitization effect in Nd: Cr: YAB crystals arereported as well.更多还原