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arXiv 1503.07499cond-mat.mes-hallphysics.optics
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J聚集体纳米结构的局域表面共振

Localized surface resonances of J-aggregate nanostructures

Claudia Triolo, Adriano Cacciola, Omar Di Stefano, Armando Genco, Marco Mazzeo, Salvatore Patanè, Rosalba Saija, Salvatore Savasta

摘要:

金属纳米结构能够将光聚集到远低于衍射极限的体积中。在这里,我们表明,通过精确的散射计算,从J-聚集染料的薄膜获得的纳米结构,集中在光学频率的电磁场。此外,与金属纳米颗粒相比,这些分子聚集体显示出非常有吸引力的非线性光学性质,可以用于实现超紧凑器件,用于在纳米级上通过光来切换光,而不需要额外的非线性材料。这些结果为基于等离子体的纳米光子学开辟了新的前景。

英文摘要:

Metallic nanostructures are able to concentrate light into volumes far below the diffraction limit. Here we show, by accurate scattering calculations, that nanostructures obtained from thin films of J-aggregate dyes, concentrate the electromagnetic field at optical frequencies. Moreover, in contrast to metal nanoparticles, these molecular aggregates display highly attractive nonlinear optical properties that can be exploited for the realization of ultracompact devices for switching light by light on the nanoscale without the need of additional nonlinear materials. These results open new perspectives in plasmonic based nanophotonics.

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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