Generation of Surface Plasmons at Waveguide Surfaces in the Mid-Infrared Region

被引:16
|
作者
Esteban, Oscar [1 ]
Gonzalez-Cano, Agustin [2 ]
Mizaikoff, Boris [3 ]
Diaz-Herrera, Natalia [2 ]
Navarrete, Maria-Cruz [4 ]
机构
[1] Univ Alcala, Dept Elect, Escuela Politecn, Madrid 28871, Spain
[2] Univ Complutense, Secc Dept Opt, Escuela Univ Opt, Madrid 28037, Spain
[3] Univ Ulm, Inst Analyt & Bioanalyt Chem, D-89075 Ulm, Germany
[4] Univ Complutense, Dept Opt, Fac Ciencias Fis, E-28040 Madrid, Spain
关键词
Surface plasmons; Corrugated waveguides; Mid-infrared; SENSORS; SILICON;
D O I
10.1007/s11468-012-9354-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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.
引用
收藏
页码:647 / 652
页数:6
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