论文标题
硫原子上的两光子多普勒紫外线激光光谱
Two-photon Doppler-free ultraviolet laser spectroscopy on sulphur atoms
论文作者
论文摘要
$ 3p^{4} $ $^{3} $ p $ _ {j} $ - $ 3p^{3} 4p $ $^{3} $ p $^{3} $ p $ _ {j} $过渡在doppler-free-free-free-free-free-free-free-free cocare cocal and ables ables ables ables ables ables ables ables ables ables ables ables ables ables ables ables ables ables axpactical abless ablesexcactiaction sulfur原子中的过渡。 CM $^{ - 1} $，使用窄带脉冲激光器。这验证并提高了S.奇数奇数水平的充分研究和均等水平之间的水平分离。 $^{34} $ s - $^{32} $ s ATOMIC同位素转移是从将飞行时间质谱与激光光谱结合起来测量的。
The $3p^{4}$ $^{3}$P$_{J}$ - $3p^{3}4p$ $^{3}$P$_{J}$ transition in the sulphur atom is investigated in a precision two-photon excitation scheme under Doppler-free and collision-free circumstances yielding an absolute accuracy of 0.0009 cm$^{-1}$, using a narrowband pulsed laser. This verifies and improves the level separations between amply studied odd parity levels with even parity levels in S I. An improved value for the $^{3}$P$_{2}$ - $^{3}$P$_{1}$ ground state fine structure splitting is determined at $396.0564$ (7) cm$^{-1}$. A $^{34}$S - $^{32}$S atomic isotope shift was measured from combining time-of-flight mass spectrometry with laser spectroscopy.
