Dressed-state analysis of efficient three-dimensional atom localization in a ladder-type three-level atomic system

被引：2
|
作者：
Zhu, Zhonghu [1 ]
Yang, Wen-Xing [1 ]
Chen, Ai-Xi [2 ]
Liu, Shaopeng [1 ]
Lee, Ray-Kuang [3 ]
机构：
[1] Southeast Univ, Dept Phys, Nanjing 210096, Jiangsu, Peoples R China
[2] East China Jiaotong Univ, Dept Appl Phys, Nanchang 330013, Peoples R China
[3] Natl Tsing Hua Univ, Inst Photon Technol, Hsinchu 300, Taiwan
来源：
LASER PHYSICS | 2016年 / 26卷 / 07期
基金：
中国国家自然科学基金;
关键词：
three-dimensional atom localization; quantum interference; the standing-wave field; PHASE-SENSITIVE ABSORPTION; GAIN SPECTRA;
D O I：
10.1088/1054-660X/26/7/075203
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the control of high-precision three-dimensional (3D) atom localization by measuring the population of the excited state in a ladder-type three-level atomic system driven by a weak probe field and a control field, together with three mutually perpendicular standing-wave fields. We find that the precision of 3D atom localization in volumes depends sensitively on the frequency detuning of the probe field and the intensity of the control field. Most importantly, we show that adjusting the phase shifts associated with the standing-wave fields leads to a redistribution of the atoms and a significant change of the atomic coherence, so that the atom can be localized in volumes that are substantially smaller than a cubic optical wavelength.
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收藏
页数：7
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