Generation of Surface Plasmons at Waveguide Surfaces in the Mid-Infrared Region
Generation of Surface Plasmons at Waveguide Surfaces in the Mid-Infrared Region
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DOI：
10.1007/s11468-012-9354-4
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发表时间：
2012-12-01
期刊：
影响因子：
3
通讯作者：
Navarrete, Maria-Cruz
中科院分区：
文献类型：
--
作者：
Esteban, Oscar;Gonzalez-Cano, Agustin;Navarrete, Maria-Cruz
提出了一种将基于表面等离子体的光谱技术应用于中红外光谱的技术，该技术在化学分析和生物传感领域具有重要意义。对于给定的材料和厚度的组合，以及对于对应于有机溶剂的折射率的周围介质的折射率，可以在波纹波导处激发6 μ m量级的波长的表面等离子体激元。这种方法可以很容易地外推到任何这些参数的其他值。基于这些考虑，新一代的中红外SPR传感器可以开发出各种各样的潜在应用在化学/生物传感。
A technique is proposed to extend the application of surface-plasmon-based spectroscopy into the mid-infrared spectral regime, which is of substantial interest in the field of chemical analysis and biosensing. Surface plasmons can be excited for wavelengths of the order of 6 mu m at corrugated waveguides for a given combination of materials and thicknesses, and for refractive indices of the surrounding medium corresponding to those of organic solvents. This approach can easily be extrapolated to other values of any of these parameters. Based on these considerations, a new generation of mid-IR SPR sensors can be developed with a diverse range of potential applications in chem/bio sensing.