Photonic and Plasmonic Guided Modes in Graphene鈥揝ilicon Photonic Crystals

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• 作者：Tingyi Gu ; Andrei Andryieuski ; Yufeng Hao ; Yilei Li ; James Hone ; Chee Wei Wong ; Andrei Lavrinenko ; Tony Low ; Tony F. Heinz
• 刊名：ACS Photonics
• 出版年：2015
• 出版时间：November 18, 2015
• 年：2015
• 卷：2
• 期：11
• 页码：1552-1558
• 全文大小：620K
• ISSN：2330-4022

文摘

We report the results of systematic studies of plasmonic and photonic guided modes in large-area single-layer graphene integrated into a nanostructured silicon substrate. The interaction of light with graphene and substrate photonic crystals can be classified in distinct regimes depending on the relation of the photonic crystal lattice constant and the relevant modal wavelengths, that is, plasmonic, photonic, and free-space. By optimizing the design of the substrate, these resonant modes can increase the absorption of graphene in the infrared, facilitating enhanced performance of modulators, filters, sensors, and photodetectors utilizing silicon photonic platforms.