Surface sensitivity of optical and magneto-optical and ellipsometric properties in magnetoplasmonic nanodisks
Surface sensitivity of optical and magneto-optical and ellipsometric properties in magnetoplasmonic nanodisks
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DOI：
10.1063/1.4939772
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发表时间：
2016-01-11
影响因子：
4
通讯作者：
Cebollada, Alfonso
中科院分区：
文献类型：
--
作者：
Herreno-Fierro, Cesar A.;Patino, Edgar J.;Cebollada, Alfonso
实验研究了磁等离子体纳米盘的光学、椭偏和磁光表面对介电环境的敏感性。在这里，作为涂层SiO2层的厚度的函数的相应的光谱结构的移位的特征。我们的研究结果表明，所谓的伪布鲁斯特角，很容易识别的椭圆偏振相位（德尔塔）光谱，是四倍以上的敏感性比传统的表面等离子体共振传感器中使用的功能。这些结果突出了需要调查的实际实施，这种技术开发改进的椭圆偏振相位为基础的传感器的生物化学传感的目的。(C)2016 AIP Publishing LLC.
The optical, ellipsometric, and magneto-optical surface sensitivity to dielectric environment of magnetoplasmonic nanodisks is experimentally studied. Here, the shift of the corresponding spectral structures as a function of the thickness of a coating SiO2 layer is characterized. Our results reveal that the so called pseudo-Brewster Angle, easily identified in the ellipsometric phase (Delta) spectrum, is up to four times more sensitive than the conventional features used in surface plasmon resonance based sensors. These results highlight the need of investigating the factual implementation of this technique to develop improved ellipsometric-phase based transducers for bio-chemical sensing purposes. (C) 2016 AIP Publishing LLC.