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Graphene-GaAs-graphene stacked layers for the improvement of the transmission at the wavelength of 1.55 mu m

机译:石墨烯-GaAs-石墨烯堆叠层,用于改善1.55μm波长下的透射率

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摘要

Transmission filter operating at the wavelength of 1.55 mu m and based on stacked graphene-GaAs-graphene layers separated by air gaps is presented. By using the transfer matrix method (TMM), we show that the addition of a graphene layer at each interface of a GaAs-based stratified structure, which initially exhibit only 30% transmission at 1.55 mu m, allows the active control of the transmission by the adjustment of the graphene chemical potential. Transmission of almost 100% at the wavelength of 1.55 mu m is achieved after addition of graphene layers. These results show the potential role of stacked graphene-GaAs-graphene layers in the development of new optical active communications devices. (C) 2016 Elsevier B.V. All rights reserved.
机译:提出了一种透射滤光片,该滤光片的工作波长为1.55μm,并基于通过气隙分隔的堆叠石墨烯-GaAs-石墨烯层。通过使用转移矩阵法(TMM),我们表明在基于GaAs的分层结构的每个界面处添加石墨烯层(最初在1.55μm处仅显示30%的透射率)可以通过以下方式主动控制透射率:调整石墨烯的化学势。添加石墨烯层后,在1.55微米的波长下几乎可以实现100%的透射率。这些结果表明,堆叠的石墨烯-GaAs-石墨烯层在新型光学有源通信设备开发中的潜在作用。 (C)2016 Elsevier B.V.保留所有权利。

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