Effect of atomic diffusion on the Raman-Ramsey coherent population trapping resonances

被引：9
作者：
Kuchina, Elena [1 ]
Mikhailov, Eugeniy E. [2 ]
Novikova, Irina [2 ]
机构：
[1] Thomas Nelson Community Coll, Hampton, VA 23666 USA
[2] Coll William & Mary, Dept Phys, Williamsburg, VA 23188 USA
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2016年 / 33卷 / 04期
基金：
美国国家科学基金会;
关键词：
CLOCK; SPECTROSCOPY; FRINGES; VAPOR;
D O I：
10.1364/JOSAB.33.000610
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We experimentally investigated the characteristics of two-photon transmission resonances in Rb vapor cells with different amounts of buffer gas under the conditions of steady-state coherent population trapping (CPT) and a pulsed Raman-Ramsey (RR) CPT interrogation scheme. We particularly focused on the influence of the Rb atoms diffusing in and out of the laser beam. We showed that this effect modifies the shape of both CPT and RR resonances as well as their projected performance for CPT clock applications. In particular we found that at moderate buffer gas pressures RR-CPT did not improve the projected atomic clock stability compared to the regular steady-state CPT resonance. (C) 2016 Optical Society of America
引用
收藏
页码：610 / 614
页数：5
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