【摘要】 <正> 近年来,在法国 Bennett和 Cerez以及在西德赵克功、Gluser和 Helmcke研究了利用³He-²⁰Ne激光辐射的612nm、630nm和640nm波长的碘分子超精细结构谱线。Bennett等首先发现了在612nm波段¹²⁷Ⅰ₂分子R（47）9-2的21条起精细结构谱线,赵克功等首先发现了在612nm波段内¹²⁹Ⅰ₂分子P（110）10-2的28条起精细结构谱线。由于赵克功等精密地更多还原

【Abstract】 The hyperfine structure of 127I2 and 129I2 absorption lines at 612nm and 640nm is observed by saturated absorption in an internal cell within a 3He-22Ne laser. At 640nm the resulting saturated absorption peaks have a contrast of 10% at a gas pressure of 27Pa. At 612nm the resulting saturated absorption peaks have a small contrast at a gas pressure of 27Pa.更多还原