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arXiv 0809.4350physics.optics
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复refractive indices费马原理与局部光线旋转

Fermat's principle with complex refractive indices and local light-ray rotation

Bhuvanesh Sundar, Alasdair C. Hamilton, Johannes Courtial

摘要:

我们用复折射率来描述局部光线的旋转。我们证明了费马原理成立,并导出了一个扩展的斯涅耳定律。光线相对于折射率界面法线的角度变化由折射率比的模描述,围绕界面法线的旋转由折射率比的辐角描述。

英文摘要:

We describe local light-ray rotation in terms of complex refractive indices. We show that Fermat's principle holds, and we derive an extended Snell's law. The change in the angle of a light ray with respect to the normal to a refractive-index interface is described by the modulus of the refractive-index ratio, the rotation around the interface normal is described by the argument of the refractive-index ratio.

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