二次非线性介质中暗类正弦波的亚稳定性
Metastability of dark snoidal-type waves in quadratic nonlinear media.
作者信息
Kartashov Yaroslav V, Egorov Alexey A, Zelenina Anna S, Vysloukh Victor A, Torner Lluis
机构信息
ICFO-Institut de Ciencies Fotoniques and Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, 08034 Barcelona, Spain.
出版信息
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Oct;68(4 Pt 2):046609. doi: 10.1103/PhysRevE.68.046609. Epub 2003 Oct 23.
We report the existence and basic properties of dark snoidal-type waves self-sustained in quadratic nonlinear media. Using a stability analysis technique, we reveal that they are almost completely stable, or metastable, in suitable ranges of input energy flows and material parameters. This opens the way to the experimental observation of dark-type multicolor periodic wave patterns supported by quadratic nonlinearities.
我们报告了在二次非线性介质中自维持的暗类摆线波的存在及其基本特性。通过稳定性分析技术，我们揭示出在合适的输入能量流和材料参数范围内，它们几乎是完全稳定的，或者说是亚稳的。这为实验观测由二次非线性支持的暗型多色周期波图案开辟了道路。
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