Nonlinear graphene metamaterial

We demonstrate that the broadband nonlinear optical response of graphene can be resonantly enhanced by more than an order of magnitude through hybridization with a plasmonic metamaterial, while retaining an ultrafast nonlinear response time of ∼ 1 ps. Transmission modulation close to ∼ 1% is seen at...

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Main Authors: Papasimakis, Nikitas, Atmatzakis, Evangelos, Luo, Zhiqiang, Shen, Zexiang, De Angelis, Francesco, Fabrizio, Enzo Di, Nikolaenko, Andrey E., Boden, Stuart A., Zheludev, Nikolay I.
其他作者: School of Physical and Mathematical Sciences
格式: Article
語言:English
出版: 2013
在線閱讀:https://hdl.handle.net/10356/95112
http://hdl.handle.net/10220/9161
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機構: Nanyang Technological University
語言: English
實物特徵
總結:We demonstrate that the broadband nonlinear optical response of graphene can be resonantly enhanced by more than an order of magnitude through hybridization with a plasmonic metamaterial, while retaining an ultrafast nonlinear response time of ∼ 1 ps. Transmission modulation close to ∼ 1% is seen at a pump fluence of ∼ 30 μJ/cm2 at the wavelength of ∼ 1.6 μm. This approach allows to engineer and enhance graphene’s nonlinearity within a broad wavelength range enabling applications in optical switching, mode-locking, and pulse shaping.