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arXiv physics/0601001physics.optics
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光增益和周围介质吸收对Ag聚集体表面等离子体共振的增强和抑制

Enhancement and suppression of surface plasmon resonance in Ag aggregate by optical gain and absorption in surrounding dielectric medium

M. A. Noginov, G. Zhu, V. M. Shalaev, V. P. Drachev, M. Bahoura, J. Adegoke, C. Small, B. A. Ritzo

摘要:

我们已经观察到在聚集的银纳米颗粒和罗丹明6G染料的混合物中,通过界面电介质中的增益补偿金属中的损耗。所展示的瑞利散射的六倍增强是表面等离子体(SP)共振的品质因数增加的证据。报道的实验观察为纳米等离子体的许多实际应用铺平了道路。我们还预测和实验观察到的抑制表面SP共振的金属纳米粒子嵌入在介电主机的吸收。

英文摘要:

We have observed the compensation of loss in metal by gain in interfacing dielectric in the mixture of aggregated silver nanoparticles and rhodamine 6G dye. The demonstrated six-fold enhancement of the Rayleigh scattering is the evidence of the increase of the quality factor of the surface plasmon (SP) resonance. The reported experimental observation paves the road to many practical applications of nanoplasmonics. We have also predicted and experimentally observed a suppression of the surface SP resonance in metallic nanoparticles embedded in a dielectric host with absorption.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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