Two-dimensional atom localization via phase-sensitive absorption-gain spectra in five-level hyper inverted-Y atomic systems

被引：23

作者：

Zhu, Zhonghu ^{[1
]}

Yang, Wen-Xing ^{[1
,2
]}

Chen, Ai-Xi ^{[3
,4
]}

Liu, Shaopeng ^{[1
]}

Lee, Ray-Kuang ^{[2
]}

机构：

[1] Southeast Univ, Dept Phys, Nanjing 210096, Jiangsu, Peoples R China

[2] Natl Tsing Hua Univ, Inst Photon Technol, Hsinchu 300, Taiwan

[3] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada

[4] East China Jiaotong Univ, Dept Appl Phys, Nanchang 330013, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2015年 / 32卷 / 06期

基金：

中国国家自然科学基金;

关键词：

SPONTANEOUS EMISSION; DIFFRACTION; BISTABILITY; OPTICS; FIELD;

D O I：

10.1364/JOSAB.32.001070

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A scheme for realizing two-dimensional atom localization in the sub-wavelength domain is proposed in a microwave- driven five-level hyper inverted-Y atomic system in which the atom interacts with a weak probe field, two control fields together with two orthogonal standing-wave fields. Because of the spatially dependent atom-field interaction, the information about the position of the atom can be extracted directly from the absorption and gain spectra of a weak probe field. It has been found that the probe detuning, the intensities of two control fields, and the relative phase of the driving fields can significantly improve the localization precision. Moreover, the maximal probability of finding the atom at an expected position in the sub-wavelength domain of the standing-wave field can reach unity via properly adjusting the system parameters. (C) 2015 Optical Society of America

引用

页码：1070 / 1077

页数：8