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arXiv 1009.4137cond-mat.mes-hall
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浅、深表面缺陷的表面等离子体散射

Surface plasmon scattering by shallow and deep surface defects

Giovanni Brucoli, Luis Martín Moreno

摘要:

表面等离子体散射的一维压痕和突起的检查,主要是在光学制度。缺陷的宽度是固定的,而其高度是变化的。单个和阵列的缺陷被认为是。突起主要反射光学范围内的入射等离子体激元。凹进主要辐射出平面的入射等离子体激元。当压痕与入射表面等离子体激元的相互作用是共振的时,压痕在相同波长处产生最大反射和面外辐射。一般来说,突出物在不同波长处表现出最大的反射和辐射。任一缺陷的浅阵列产生光子带隙,其光谱宽度可以通过增加缺陷的高度或深度来加宽。在带隙内的波长处,脊阵列比槽阵列更好地反射SPP,而槽阵列比脊阵列更好地辐射SPP。

英文摘要:

Surface plasmon scattering by 1D indentations and protrusions is examined, mainly in the optical regime. The width of the defects is fixed, while its height is varied. Both individual and arrays of defects are considered. Protrusions mainly reflect the incident plasmons in the optical range. Indentations mainly radiate the incident plasmon out of plane. An indentation produces maximum reflections and out-of-plane radiation at the same wavelength, when its interaction with the incident surface plasmon is resonant. Protrusions, in general, exhibit maximum reflection and radiation at different wavelengths. Shallow arrays of either defects produce a photonic band-gap, whose spectral width can be broadened by increasing the defects height or depth. At wavelengths inside the bandgap ridge arrays reflect SPPs better than groove arrays, while groove arrays radiate SPPs better than ridge arrays.

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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