中国物理B ›› 2012, Vol. 21 ›› Issue (11): 114206-114206.doi: 10.1088/1674-1056/21/11/114206
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
王飞a, 龚成b, 谭新玉a, 石文星c
Wang Fei (王飞)a, Gong Cheng (龚成)b, Tan Xin-Yu (谭新玉)a, Shi Wen-Xing (石文星 )c
摘要: We propose a continuously tunable method of the sub-half-wavelength localization via the coherent control of the spontaneous emission of a four-level Y-type atomic system, which is coupled to three strong coupling fields including a standing-wave field together with a weak probe field. It is shown that the sub-half-wavelength atomic localization is realized for both resonance and off-resonance cases. Furthermore, by varying the probe detuning in succession, the positions of the two localization peaks are tuned continuously within a wide range of probe field frequencies, which provides convenience for the realization of sub-half-wavelength atomic localization experimentally.
中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)