新型激光模型实现SPP增益补偿的数学分析

发布时间：2018-01-01 02:07

  本文关键词：新型激光模型实现SPP增益补偿的数学分析　出处：《实验室研究与探索》2017年09期 　论文类型：期刊论文

  更多相关文章： 表面等离子激光器 损耗-补偿 有机染料分子 系统不稳定性

【摘要】：设计了有机染料分子的球形波导结构,采用最内层金属金(Au)、外层Si介质的多层球形结构,在环形介质中植入有机染料分子作为增益耦合介质。理论上分析了模型的的受激辐射磁场能量、辐射谱以及有机染料分子增益效果。特性分析结果表明:光波在有机染料分子增益区能够与内层金属实现耦合,发生了多层电场局域化现象,增益对金属-介质间的表面等离子有一定的补偿效果,从增益的高折射区与低折射率区间发生了全反射,实行了表面等离子传播的增益补偿效果。能够通过调节波导参数实现损耗-补偿控制,高折射区能够实现SPP补偿,有机染料分子距离核区越近补偿效果更好,损耗更小。
[Abstract]:The spherical waveguide structure of organic dyestuff molecules is designed. The innermost metal au is used, and the multilayer spherical structure of the outer Si medium is adopted. Organic dye molecules are implanted in annular media as gain coupling medium. The excited magnetic field energy of the model is analyzed theoretically. Radiation spectrum and gain effect of organic dye molecules. The results of characteristic analysis show that the optical wave can be coupled with inner metal in the gain region of organic dye molecules, resulting in the phenomenon of multi-layer electric field localization. The gain has a certain compensation effect on the surface plasma between the metal and the medium. The total reflection occurs in the high refraction region and the low refractive index region of the gain. The gain compensation effect of surface plasma propagation is implemented. Loss compensation control can be realized by adjusting waveguide parameters and SPP compensation can be realized in high refraction region. The closer the organic dye molecule is to the nuclear region, the better the compensation effect is, and the smaller the loss is.
【作者单位】： 重庆科创职业学院;重庆师范大学数学科学学院;
【基金】：教育部重点课题项目(DHA090180)
【分类号】：TN24
【正文快照】： 0引言微纳米领域的表面等离子学研究的是金属粒子的表面等离激元(Surface Plasmon Polariton,SPP)电磁模式,其模式特性主要是由粒子尺度、组成及其周围的介电常数决定,纳米等离子光学学科也因此而兴起的[1-4]。SPP与增益的耦合产生自激振荡成为表面等离子激光器(Surface Plasm，

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