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Surface plasmon polariton(SPP) nanolaser, which can achieve an all-optical circuit, is a major research topic in the field of micro light source. In this study, we examine a novel SPP graphene nanolaser in an optoelectronic integration field.The proposed nanolaser consists of metallic silver, two-dimensional(2 D) graphene and high refractive index semiconductor of indium gallium arsenide phosphorus. Compared with other metals, Ag can reduce the threshold and propagation loss.The SPP field, excited by coupling Ag and InGaAsP, can be enhanced by the 2 D material of graphene. In the proposed nanolaser, the maximum value of propagation loss is approximately 0.055 d B/μm, and the normalized mode area is constantly less than 0.05, and the best threshold can achieve 3380 cm~(-1) simultaneously. Meanwhile, the proposed nanolaser can be fabricated by conventional materials and work in optical communication(1550 nm), which can be easily achieved with current nanotechnology. It is also an important method that will be used to overcome the challenges of high speed,miniaturization, and integration in optoelectronic integrated technology.  相似文献   
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设计了褶皱石墨烯波导结构激发表面等离子体激元,通过设计周期阵列结构实现了表面等离子体激元传播损耗的补偿.理论分析了周期阵列结构的表面等离子体激元传播模型和补偿损耗的方式,结果表明褶皱衍射激发表面等离子体激元波导不仅能够激发表面等离子体激元,还能利用表面等离子体激元波矢关系实现器件参数控制,周期阵列增益全程补偿损耗的方式可以显著增加表面等离子体激元的传播距离.数值分析结果进一步表明:该结构具备了保持亚波长尺寸的强局域化优势;周期阵列增益全程补偿可以显著提高纳米腔中的电场强度,降低传输损耗;波导结构的粒子反转水平较高,自发辐射噪声的扰动较低.设计的石墨烯波导器件可以为微纳光学集成、光子传感和测量等领域提供理想的亚波长光子器件.  相似文献   
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