本文报道了单光子激发NO分子A2∑+(υ=0)能级的LIF光谱研究,其观测到A2Σ+(o=0)→X2Ⅱ(1″=0～11)跃迁的12个振动带。运用两步激发的方法,研究了E2Σ+(扣=0)能级激发后在紫外波段的LIF光谱,明显测量到了E2Σ+(1=0)能级直接跃迁到基态X2Ⅱ的荧光振动带。

The LIF spectrum of A2+(v=0) level of NO molecule has been studied by one-photon excitation. Twelve vibrational bands of A2+(v= 0-11) transition were observed. By using the method of two-step excitation, we studied for the first time the LIF spectrum in UV region after the E2+(v=0) energy level was excited. The vibrational bands directly from E2+(v=0) level to ground state X2H were obviously measured.