| 非线性媒质中时空光孤子之间的能量交换 |
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| 引用本文： | 杨红,谭子尤.非线性媒质中时空光孤子之间的能量交换[J].吉首大学学报(自然科学版),2009,30(2):52-54. |
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| 作者姓名： | 杨红 谭子尤 |
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| 作者单位： | （吉首大学物理科学与信息工程学院，湖南 吉首 416000） |
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| 摘 要： | 采用分裂步长傅立叶法研究了在色散立方-五次非线性媒质中碰撞的(3+1)维时空光孤子之间的能量交换.通过大量的数值模拟发现(3+1)维时空光孤子之间的能量交换对它们之间的相位差很敏感,两迎面相撞的时空孤子如果有相同的速率且它们之间的相位差在（0~π）之间，那么能量从初始相位滞后的光子弹转移到初始相位领先的光子弹；如果它们之间的相位差在（0~π）之间，那么能量从初始相位领先的光子弹转移到初始相位滞后的光子弹.
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| 关 键 词： | 立方-五次方非线性 时空光孤子 能量交换 |
Energy Exchange between Spatiotemporal Optical Solitons in Nonlinear Medium |
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| YANG Hong,TAN Zi-you.Energy Exchange between Spatiotemporal Optical Solitons in Nonlinear Medium[J].Journal of Jishou University(Natural Science Edition),2009,30(2):52-54. |
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| Authors: | YANG Hong TAN Zi-you |
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| Institution: | (College of Physics Science and Information Engineering,Jishou University,Jishou 416000,Hunan China) |
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| Abstract: | Energy exchange between (3+1)D colliding spatiotemporal solitons (STSs) in dispersive media with the cubic-quintic (CQ) nonlinearity is studied by numerical simulations using the split-step Fourier method in the paper.Extensive simulations reveal that energy exchange between two (3+1)D colliding STSs is sensitive to their phase difference.When the phase difference between two colliding STSs of equal and opposite velocities varies from 0 to π,the light bullet leading in phase gains energy.When the phase difference vahies from 0 to π,the one leading in phase loses energy. |
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| Keywords: | cubic-quintic nonlinearity spatiotemporal optical solitons energy exchange |
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