arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1002.0743physics.optics
收藏

没有光学活性的光学手性:表面等离子体如何扭曲光

Optical chirality without optical activity: How surface plasmons give a twist to light

A. Drezet, C. Genet, J. -Y. Laluet, T. W. Ebbesen

摘要:

光与左手和右手三维手性物体(如螺旋)的相互作用不同,这导致了被称为旋光性的现象。在这里,通过应用偏振断层扫描,我们实验表明,第一次在可见光域中,手性具有不同的光学表现为扭曲的平面纳米结构金属物体作为孤立的手性元对象。我们的分析演示了如何表面等离子体,这是有损耗的二维电磁波传播的结构顶部,可以离域光的信息,在刚刚精确的方式引起这种微妙的效果。

英文摘要:

Light interacts differently with left and right handed three dimensional chiral objects, like helices, and this leads to the phenomenon known as optical activity. Here, by applying a polarization tomography, we show experimentally, for the first time in the visible domain, that chirality has a different optical manifestation for twisted planar nanostructured metallic objects acting as isolated chiral metaobjects. Our analysis demonstrate how surface plasmons, which are lossy bidimensional electromagnetic waves propagating on top of the structure, can delocalize light information in the just precise way for giving rise to this subtle effect.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑