量子电子学报, 2008, 25 (2): 0129, 网络出版: 2010-06-07
铟离子冷却用跃迁频率与同位素移动的精密测量
Absolute frequency and isotope shift measurements of the cooling transition in singly ionized Indium
摘要
利用囚禁在Paul型离子阱中的铟单离子和飞秒光频梳实现了铟离子5s21S0(F=9／2)－5s5p3P1(F=11／2)230．6 nm冷却用跃迁频率的精密测量，准确度有超过两个量级的提高。一台基于半导体激光器的四倍频系统作为光源，飞秒激光光频梳作为光频测量的工具，它的参考源为一台铯原子钟。铟离子115In+与113In+的跃迁频率分别为1299648954．54(10)MHz和1299649585．36(16)MHz。该跃迁对应的纯同位素移动为630．82(19)MHz，考虑超精细相互作用后，同位素移动为695．76(1．68)MHz。
Abstract
Greater than two orders of magnitude improvements in the absolute frequency and isotope shift measurements of the In+ 5S2 1S0(F=9/2)－5s5p 3p1(F=11/2)transition near 230.6 nn are reperted. The fourth-harmonic of a semiconductor laser is used as the light source. The absolute frequency is measured with the help of a frequency comb referenced to a Cs atomic clock. The resulting transition frequencies for isotopes 115In+ and 113In+ are measured to be 1299648954.54(10)MHz and 1 299 649 585.36(16)MHz,respectively. The deduced cooling transition frequency difference is 630.82(19)MHz. The isotope shift is calculated to be 695.76(1.68)MHz.
王延辉, Dumke R, 张洁, 刘涛, Stejskal A, 赵燕宁, 陆泽晃, 王力军, 董太乾. 铟离子冷却用跃迁频率与同位素移动的精密测量[J]. 量子电子学报, 2008, 25(2): 0129. WANG Yan-hui, Dumke R, ZHANG Jie, LIU Tao, Stejskal A, ZHAO Yan-ning, LU Ze-huang, WANG Li-jun, DONG Tai-qian. Absolute frequency and isotope shift measurements of the cooling transition in singly ionized Indium[J]. Chinese Journal of Quantum Electronics, 2008, 25(2): 0129.
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