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Propagation of Few-Cycle Pulse Laser in Two-Level Atom Medium |
| XIAO Jian;WANG Zhong-Yang;XU Zhi-Zhan |
| Laboratory for High Intensity Optics, Shanghai Institute of
Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
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| Cite this article: |
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XIAO Jian, WANG Zhong-Yang, XU Zhi-Zhan 2001 Chin. Phys. Lett. 18 912-914 |
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Abstract By comparing the numerical solutions of Maxwell-Bloch equations beyond and within the slowly-varying envelope approximation and the rotating-wave approximation for the propagation of few-cycle pulse laser in a resonant two-level atom medium, we found that both the Rabi flopping and the refractive index, and subsequently the carrier and the propagation velocity of the few-cycle pulse, are closely connected with the time-derivative behaviour of the electric field. This is because of the Rabi flopping is such that soliton pulse splits during propagation and that a shorter pulse propagates faster than a broader one.
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| Keywords:
42.65.Re
42.50.Gy
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Published: 01 July 2001
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| PACS: |
42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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