【摘要】 研究了 Na₂6′∑_g⁺态的预离解,Na 蒸汽被 Ar⁺激光器泵浦的染料激光激发,通过双光子吸收使6°∑_g⁺态得到布居,记录吸收线的宽度,分别测量 Na 3D→3P,5S→3P,4D→3P 跃迁的谱线强度与分子谱线的强度比,得到了6′∑_g⁺态的预离解率。更多还原

【Abstract】 Predissociation of a high-lying 6¹∑_g⁺ state of Na₂ is studied.Na vapor is irradiated from a Ar⁺ laser pumped dye laser, populating 6¹∑_g⁺ state by two-photun absorption.The predissociation is monitored by the atomic sodium emission on the Na 3D→3P,5S→ 3P and 4D→3P transitions.By combining ratios of atomic to molecular fluorescence,the absolute predissociation rate of 6¹∑_g⁺ level is directly measured from the line width recorded on the laser excitation scan.更多还原