Stark-shift measurement of the (6s)2 1S0-->(6s6p)1P1 barium transition.
Stark-shift measurement of the (6s)2 1S0-->(6s6p)1P1 barium transition.
复制标题
(6s)2 1S0-->(6s6p)1P1 钡跃迁的斯塔克位移测量。
DOI：
10.1103/physreva.51.3560
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
van Wijngaarden WA
中科院分区：
文献类型：
--
作者：
Li;van Wijngaarden WA
用激光激发原子束穿过均匀电场和无场区域，测量了(6S)2 1 S 0→(6S6P)1 P1跃迁的斯塔克位移。激光频率扫描跨越跃迁，同时检测到激发态辐射衰变产生的荧光。频率扫描是使用声光调制器进行校准的，声光调制器将激光频率移动了特定的量。测得Ba1335，1.37F=1/2能级相对于(6s6p)1P1态Ba138的超精细分裂为-549.47±0.12 MHz，负号表示Ba138跃迁的频率较低。
The Stark shift of the (6s) 2 1 S 0→(6s6p) 1 P 1 transition in barium was measured using a laser to excite an atomic beam as it traversed a uniform electric field and a field-free region. The laser frequency was scanned across the transition while fluorescence produced by the radiative decay of the excited state was detected. The frequency scan was calibrated using an acousto-optic modulator which frequency shifted the laser by a specified amount. The Stark-shift rate was found to be-28.532±0.060 kHz/(kV/cm) 2. The hyperfine splitting of the Ba 1 3 5, 1 3 7 F= 1/2 level relative to Ba 138 of the (6s6p) 1 P 1 state was determined to be-549.47±0.12 MHz, where the minus sign indicates that the Ba 138 transition is at a lower frequency.