NO分子A^2 ∑←X^2 ∏跃迁的荧光激发谱(英文)

Fluorescence Excitation Spectra of NO via A^2∑←X^2∏Transition

利用激光光谱技术得到NO分子在 4 2 0～ 4 70nm的荧光激发谱及A2 ∑←X2 ∏ (0 ,0 )跃迁的荧光时间分辨谱 .荧光激发谱归属于A2 ∑←X2 ∏ (0 ,0 ) (0 ,1)跃迁 .根据实验测得的数据 ,得到A2 ∑ (v =0 )态得力常数k =2 .32× 10 3N/m ,自然寿命τ0 ≈ 195ns .

Two photons fluorescence excitation spectrum in the range of 420～472 nm of NO is obtained.The spectrum is attributed to A2∑(v′=0.1)←X2∏(v″=0)Transition.The value for force constant of k=2.32×103 N/m is gotten.The fluorescence decay spectrum of A2∑(v′=0)→X2∏(v″=0,1...)at different pressure are measured.The value for the spontaneous radiative lifetime of A2∑(v=0) is 195 ns.