| Original Articles |
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Observation of Sub-femtosecond Polarization Beats Using Twin Noisy Driving Fields |
| LI Chuang-She1, SHEN Lei-Jian1, DU Yi-Gang1, ZHENG Huai-Bin1, NIE Zhi-Qiang1, YANG Yong-Ming3, ZHANG Wei-Feng1, GAN Chen-Li2, ZHANG Yan-Peng 1,2 |
| 1Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 7100492Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA3School of Science, Xi'an University of Architecture and Technology, Xi'an 710055 |
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| Cite this article: |
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LI Chuang-She, SHEN Lei-Jian, DU Yi-Gang et al 2008 Chin. Phys. Lett. 25 2892-2895 |
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Abstract We study the phase-conjugate polarization interference in a V-type three-level system and obtain an analytic closed form for the second-order stochastic correlation of sum-frequency polarization beat. In our Na vapour atomic system pumped by laser pulse of nano-second timescale duration, we experimentally demonstrate an ultrafast modulation of the four-wave mixing signal intensity with a sub-femtosecond timescale period, corresponding to the sum-frequency of the resonant transitions from 3S1/2 to 3P1/2 and 3P3/2.
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| Keywords:
42.65.Sf
42.65.Re
32.80.Qk
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Received: 06 January 2008
Published: 25 July 2008
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| PACS: |
42.65.Sf
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(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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32.80.Qk
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(Coherent control of atomic interactions with photons)
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