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Dromion Excitations in Self-Defocusing Optical Media |
| CUI Wei-Na;SUN Chun-Liu;HUANG Guo-Xiang |
| Department of Physics and Key Laboratory for Optical and Magnetic Resonance Spectroscopy, East China Normal University, Shanghai 200062 |
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| Cite this article: |
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CUI Wei-Na, SUN Chun-Liu, HUANG Guo-Xiang 2003 Chin. Phys. Lett. 20 246-249 |
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Abstract We investigate the nonlinear dynamics of multi-dimensional optical pulses propagating in an isotropic self-defocusing medium. Using a method of multiple-scales we show that the nonlinear evolution of the pulses is governed by Davey-Stewartson equations. Dromion-like nonlinear localized structures (high-dimensional optial solitons) excited from a continuous wave background and decaying in all spatial directions are predicted through the interaction between a wave-packet superposed by short-wavelength components and a long-wavelength mean field generated by an optical rectification.
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| Keywords:
42.65.Tg
42.81.Dp
05.45.Yv
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Published: 01 February 2003
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| PACS: |
42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.81.Dp
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(Propagation, scattering, and losses; solitons)
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05.45.Yv
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(Solitons)
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