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arXiv physics/0605194physics.optics
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非线性布拉格光栅波导阵列中的慢光光学子弹

Slow-light optical bullets in arrays of nonlinear Bragg-grating waveguides

Andrey A. Sukhorukov, Yuri S. Kivshar

摘要:

我们演示了如何独立控制慢光的空间和时间动态。我们发现,特别设计的非线性波导阵列与相移布拉格光栅展示了频率无关的空间衍射附近的光子带隙的边缘,在那里的光的群速度可以大大减少。我们在数值模拟中表明,这样的结构允许在设计和控制色散特性的很大的灵活性,并打开了一个有效的时空自陷和形成慢光光学子弹的方式。

英文摘要:

We demonstrate how to control independently both spatial and temporal dynamics of slow light. We reveal that specially designed nonlinear waveguide arrays with phase-shifted Bragg gratings demonstrate the frequency-independent spatial diffraction near the edge of the photonic bandgap, where the group velocity of light can be strongly reduced. We show in numerical simulations that such structures allow a great flexibility in designing and controlling dispersion characteristics, and open a way for efficient spatiotemporal self-trapping and the formation of slow-light optical bullets.

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