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Raman spectroscopy with graphenated anodized aluminum oxide substrates

机译：石墨化阳极氧化铝基板的拉曼光谱

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摘要

We measured the Raman scattering of graphene deposited nanohole arrays. As the sample was azimuthally rotated, periodicities of 7.5°and 5°were revealed for the 2700 cm~(-1) and 1600 cm~(-1) Raman lines of graphene, respectively. This is contrary to the scattered laser line azimuthal symmetry of 30°for the hole array alone. When a reference dye (stilbene) was deposited on the graphenated platforms, its Raman peak shifted as a function of incident (tilt) angle; this was contrary to the unshifted 1600 cm~(-1) peak of graphene itself. The data suggest strong coupling between the molecular vibrations as portrayed by Raman spectra and surface plasmon polariton waves propagating along the graphene surface.
机译：我们测量了石墨烯沉积的纳米孔阵列的拉曼散射。当样品进行方位角旋转时，石墨烯的2700 cm〜（-1）和1600 cm〜（-1）拉曼谱线的周期分别为7.5°和5°。这与仅针对孔阵列的30°散射激光线方位角对称性相反。当参考染料（二苯乙烯）沉积在石墨化平台上时，其拉曼峰随入射（倾斜）角而变化;这与石墨烯本身未移动的1600 cm〜（-1）峰相反。数据表明，由拉曼光谱描述的分子振动与沿石墨烯表面传播的表面等离振子极化子波之间存在强耦合。

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