双光子激发钡原子蒸汽中原子发射的实验研究

Experimental Studies on Atomic Emissions in Atomic Barium Vapour Excited by Two-photon

在工作用波长为528.5nm、534.2nm及539.2nm染料激光脉冲,对钡蒸汽原子基态进行选择激发,分别使5d6d^1D_2、6s7d^1D_2及5d6d^3F_2态获得布居,产生由双光子共振吸收引起的一系列红外及可见原子辐射线。

In the experiment, atomic states of 5d6d^1D_2、6s7d^1D_2and5d 6d^3F_2 have beenpopulated by Two-photon selective excitation of 528. 5nm,534. 2nm and 539. 2nm,respectively. Serial infrared and visible atomic emission lines were observed. Thebehaviour of thoes lines has been discussed.