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arXiv 1508.04072physics.optics
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亚波长硅线对表面等离子体激元的散射

Surface plasmon polaritons scattering by subwavelength silicon wires

Mehdi Shafiei Aporvari, Ahmad Shafiei Aporvari, Fardin Kheirandish

摘要:

采用时域有限差分法研究了亚波长二维硅线的表面等离子体激元散射。结果表明,将入射表面等离子体激元耦合到粒子的腔间模可以显著地改变透射场和等离子体激元诱导力。特别地,透射力和光学力对颗粒尺寸高度敏感,所述颗粒尺寸与取决于颗粒形状和尺寸的回音壁模式或驻波模式的激发有关。这种特性可能具有潜在的传感应用。

英文摘要:

Surface plasmon polaritons scattering from 2D subwavelength silicon wires is investigated using finite difference time domain method. It is shown that coupling an incident surface plasmon polariton to inter-cavity modes of the particle can dramatically changes transmitted fields and plasmon induced forces. In particular, both transmission and optical forces are highly sensitive to the particle size that is related to the excitation of whispering gallery modes or standing-wave modes depending on the particle shape and size. This features might have potential sensing applications.

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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