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Trichromatic Manipulation of Kerr Nonlinearity in a Three-Level Λ Atomic System |
| GUO Hong-Ju, NIU Yue-Ping, WANG Li-Chun, JIN Shi-Qi, GONG Shang-Qing |
| 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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| Cite this article: |
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GUO Hong-Ju, NIU Yue-Ping, WANG Li-Chun et al 2008 Chin. Phys. Lett. 25 3656-3659 |
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Abstract Trichromatic manipulation of Kerr nonlinearity in a three-level Λ atomic configuration is investigated theoretically. It is shown that for a weak monochromatic probe field, the enhanced Kerr nonlinearity can be achieved in multiple separate transparent windows due to interference effect of multiple two-photon Raman channels. Furthermore, the property of Kerr nonlinearity can be controlled by the sum of the relative phases of the sideband components of the trichromatic pump field compared to the central component.
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| Keywords:
42.50.Hz
32.80.Qk
42.65.-k
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Received: 27 February 2008
Published: 26 September 2008
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| PACS: |
42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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32.80.Qk
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(Coherent control of atomic interactions with photons)
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42.65.-k
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(Nonlinear optics)
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