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arXiv 1208.0372physics.optics
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近零跃迁超材料中的高斯光束

Gaussian Beams in Near-Zero Transition Metamaterials

Fatema Alali, Natalia M. Litchinitser

摘要:

我们从理论和数值上研究了高斯光束在正-零-负折射率和正-零-正折射率两种过渡型超材料中的共振场增强现象,并证明了这两种情况下的强局域共振场增强。该研究在纳米光学、亚波长成像、纳米加工等领域具有重要的应用价值,为研究更复杂的矢量和涡旋光束在梯度折射率材料中的传输奠定了基础。

英文摘要:

We theoretically and numerically investigate the phenomenon of resonant field enhancement of Gaussian beams in two types of transition metamaterials: with a positive-zero-negative index profile and with a positive-zero-positive index profile and demonstrate strongly localized resonant field enhancement in both cases. This study is likely to have applications in the fields of nano-optics, sub-wavelength imaging, and nano-fabrication and lays a foundation for the studies of more complex vector and vortex beam propagation in graded-index metamaterials.

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。

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