Controllable Kerr Nonlinearity with Perfect Transparency in the Existence of Spontaneously Generated Coherence

NIU Yue-Ping; GONG Shang-Qing; LI Ru-Xin; XU Zhi-Zhan

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Controllable Kerr Nonlinearity with Perfect Transparency in the Existence of Spontaneously Generated Coherence

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We investigate the Kerr nonlinearity of a V-type three-level atomic system where the upper two states decay outside to another state and hence spontaneous generated coherence may exist.It is shown that dark state and hence perfect transparency present under certain conditions.Meanwhile,the Kerr nonlinearity can be controlled by manipulation of the decay rates and the splitting of the two excited states.Therefore,enhanced Kerr nonlinearity without absorption can be obtained under proper parameters.

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《中国物理快报：英文版》 |2008年第2期|540-543|共4页
作者
NIU Yue-Ping; GONG Shang-Qing; LI Ru-Xin; XU Zhi-Zhan;
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State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai,201800;

State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai,201800;

State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai,201800;

State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai,201800;

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中图分类物理学;
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Controllable Kerr Nonlinearity with Perfect Transparency in the Existence of Spontaneously Generated Coherence

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