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Fourth-Order Interference on Polarization Beats with Phase-Conjugation Geometry |
| ZHANG Yan-Peng;SUN Li-Qun;TANG Tian-Tong;ZHANG Lu;FU Pan-Ming |
| Department of Electronic Science and Technology, Xian Jiaotong University, Xian 710049 |
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| Cite this article: |
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ZHANG Yan-Peng, SUN Li-Qun, TANG Tian-Tong et al 2000 Chin. Phys. Lett. 17 206-208 |
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Abstract The effect of fourth-order coherence on ultrafast modulation spectroscopy (UMS) with phase-conjugation geometry (PCUMS) in a cascade three-level system is investigated using chaotic and phase-diffusion models. It has been found that the modulation terms of the beat signal depend on the second-order coherence function, and different stochastic models of the laser field affect only the fourth-order coherence function. The difference between the PCUMS and UMS is discussed from a physical viewpoint.
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| Keywords:
42.65.Re
42.65.Hw
32.90.+a
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Published: 01 March 2000
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| PACS: |
42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.65.Hw
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(Phase conjugation; photorefractive and Kerr effects)
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32.90.+a
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(Other topics in atomic properties and interactions of atoms with photons)
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