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首页> 外文会议>Conference on physics and simulation of optoelectronic devices XXIII >Plasmonic waveguides in Mid infra-red using silicon- insulator-silicon
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Plasmonic waveguides in Mid infra-red using silicon- insulator-silicon

机译：使用硅绝缘体 - 硅在中红外线的等离子体波导

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The mid-infrared (MIR) region is one of the most thriving spectral regions as it contains the vibrational resonances of several molecules of interest, as well as the absorption bands for hot bodies. In this work, we propose a novel dielectric waveguide that confines the light in a nanoscale air gap. This dielectric waveguide is a suitable candidate for on-chip sensing. Detailed dispersion analysis of this 3D waveguide is also provided. The effect of the refractive index change in the gap is studied and shows very high sensitivity and causes significant changes in the modal parameters. We also show that these waveguide modes exhibit plasmonic-like characteristics at the MIR region with controllable plasma frequency, without the inclusion of any metals. This waveguide is also utilized in various on-chip applications with nanoscale confinement at the MIR region.
机译：中红外（MIR）区域是最繁荣的光谱区域之一，因为它包含几种感兴趣的振动共振，以及热体的吸收带。在这项工作中，我们提出了一种新的介电波导，该介电波导将光限制在纳米级气隙中。该介电波导是用于片上感测的合适候选者。还提供了该3D波导的详细分散分析。研究了间隙中折射率变化的效果，并显示出非常高的灵敏度，并导致模态参数的显着变化。我们还表明，这些波导模式具有可控等离子体频率的MIR区域的等离子体状特征，而不包含任何金属。该波导也用于各种片上应用，其中MIR区域具有纳米级限制。

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