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arXiv 0708.2108physics.optics
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金属与柱状薄膜平面界面上表面等离子激元的形态效应金属与柱状薄膜平面界面

Morphological effects on surface plasmon polaritons at the planar interface of a metal and a columnar thin film The Planar Interface Of A Metal And A Columnar Thin Film

John A. Polo, Akhlesh Lakhtakia

摘要:

在柱状薄膜(CTF)和金属的界面处的表面等离子体激元(SPP)存在于相对于CTF的形态的传播方向的范围上,该传播方向取决于CTF中的柱的倾斜。SPP波的相速度主要作为CTF柱的倾斜的函数而变化。SPP波对界面的限制和SPP波沿传播方向的衰减都强烈依赖于相对于CTF的形态学显著平面的传播方向。相对于界面的柱状倾斜越大,传播范围越短。由于其多孔性和设计这种双轴介电材料的能力,CTF-金属界面可能比生产SPP的传统方法更有吸引力。

英文摘要:

Surface plasmon polaritons (SPPs) at the interface of a columnar thin film (CTF) and metal exist over a range of propagation directions relative to the morphology of the CTF which depends on the tilt of the columns in the CTF. The phase speed of the SPP wave varies mainly as a function of the tilt of the CTF columns. Both the confinement of the SPP wave to the interface and the decay of the SPP wave along the direction of propagation depend strongly on the direction of propagation relative to the morphologically significant plane of the CTF. The greater the columnar tilt in relation to the interface, the shorter is the range of propagation. Because of its porosity and the ability to engineer this biaxial dielectric material, the CTF-metal interface may be more attractive than traditional methods of producing SPPs.

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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