宽波段多步激发K_2-系统产生的钾原子高位态辐射

Generation of radiation lines from K high-lying states by multi-step pumping covering a wide wavelength region K_2-K system

本文首次报道以690.0～715.0nm宽波段范围内任何波长的脉冲染料激光激发K_2—K系统,由高位钾分子与钾原子碰撞以及分子-原子的混合激发等过程而产生钾原子404.4,404.7和470.05～590.0nm波段内高位态辐射的实验结果,并对激发机制进行了探讨.

By multi-step excitation of K with any pumping wavelength between 690.0-715.0nm, oollision-energy-transfer from potassium dimer to atomic potassium, hybrid excitation, and the other processes in K2-K system, the radiation at 404.4, 404.7nm and in 470.0-590.0 nm region from high-lying states of atomic potassium was generated. The excitation and population mechanisms were discussed.