• 文献标题:   High-quality Si3N4 circuits as a platform for graphene-based nanophotonic devices
  • 文献类型:   Article
  • 作  者:   GRUHLER N, BENZ C, JANG H, AHN JH, DANNEAU R, PERNICE WHP
  • 作者关键词:  
  • 出版物名称:   OPTICS EXPRESS
  • ISSN:   1094-4087
  • 通讯作者地址:   Karlsruhe Inst Technol
  • 被引频次:   27
  • DOI:   10.1364/OE.21.031678
  • 出版年:   2013

▎ 摘  要

Hybrid circuits combining traditional nanophotonic components with carbon-based materials are emerging as a promising platform for optoelectronic devices. We demonstrate such circuits by integrating single-layer graphene films with silicon nitride waveguides as a new architecture for broadband optical operation. Using high-quality microring resonators and Mach-Zehnder interferometers with extinction ratios beyond 40 dB we realize flexible circuits for phase-sensitive detection on chip. Hybrid graphene-photonic devices are fabricated via mechanical transfer and lithographic structuring, allowing for prolonged light-matter interactions. Our approach holds promise for studying optical processes in low-dimensional physical systems and for realizing electrically tunable photonic circuits. (C) 2013 Optical Society of America