Two-dimensional atom localization via spontaneous emission in a coherently driven five-level M-type atomic system

Journal Article · Wed Jun 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.063834· OSTI ID:21550215

Chunling, Ding; Jiahua, Li; Xiaoxue, Yang ^[1]; Zhiming, Zhan ^[2]

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1. Wuhan National Laboratory for Optoelectronics and School of Physics, Huazhong University of Science and Technology, Wuhan 430074 (China)
2. School of Physics and Information Engineering, Jianghan University, Wuhan 430056 (China)

A scheme is proposed for two-dimensional atom localization in the subwavelength domain via controlled spontaneous emission. We consider a five-level M-type atomic system interacting with two orthogonal standing-wave laser fields and the vacuum of the radiation field. The interaction of the atom with space-dependent standing-wave fields can provide information about the position of the atom passing through, thus leading to atom localization. It is found that the localization is significantly improved due to the interference effect between the spontaneous decay channels and the dynamically induced quantum interference generated by the two standing-wave fields. By properly varying the system parameters, we can achieve high-precision and high-resolution atom localization.

• OSTI ID: 21550215
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCURACY
ATOMS
DECAY
ELECTROMAGNETIC RADIATION
EMISSION
INTERACTIONS
INTERFERENCE
LASER RADIATION
RADIATIONS
RESOLUTION
SPACE DEPENDENCE
STANDING WAVES
TWO-DIMENSIONAL CALCULATIONS