arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1702.00115cond-mat.mtrl-sci
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含金纳米结构的石墨烯纳米网中的局域表面等离子体共振

Localized surface plasmon resonance in graphene nanomesh with Au nanostructures

Yang Wu, Jing Niu, Mohammad Danesh, Jingbo Liu, Yuanfu Chen, Lin Ke, Chengwei Qiu, Hyunsoo Yang

摘要:

研究了石墨烯纳米网与金纳米盘的混合结构,通过局域表面等离子体共振增强光吸收。从没有和有纳米盘的石墨烯纳米网样品的可见光范围的反射光谱,发现在共振波长附近,在金纳米盘的存在下,石墨烯纳米网结构的吸收大大增强。基于时域有限差分法的仿真结果支持实验观察。这项研究表明,石墨烯基光电探测器具有高的光吸收效率和波长选择性的建设潜力。

英文摘要:

A hybrid structure of a graphene nanomesh with the gold nanodisks is studied to enhance the light absorption by localized surface plasmon resonance. From the reflection spectra of the visible range for graphene nanomesh samples without and with nanodisks, it is found that the absorption of graphene nanomesh structures is greatly enhanced in the presence of gold nanodisks around the resonance wavelength. Simulation results based on the finite-difference time-domain method support the experimental observations. This study demonstrates the potential of constructing graphene based photodetectors with a high light absorption efficiency and wavelength selectivity.

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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