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Diffraction from an edge in a self-focusing medium

机译:自聚焦介质中边缘的衍射

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We experimentally demonstrate diffraction from a straight edge in a medium with self-focusing nonlinearity. Dif-nfraction into the shadow region is suppressed with increasing nonlinearity, but mode coupling leads to excitationsnand traveling waves on the high-intensity side. Theoretically, we interpret thesemodulations as spatially dispersivenshock waves with negative pressure. © 2010 Optical Society of America
机译:我们通过实验证明在具有自聚焦非线性的介质中从直边衍射。随着非线性度的增加,进入阴影区域的衍射被抑制,但是模式耦合导致高强度侧的激发和行波。从理论上讲,我们将这些调制解释为具有负压的空间色散冲击波。 ©2010美国眼镜学会

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