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Proceedings Paper

Nanoplasmonic waveguides and modulators for advanced optical interconnects
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Paper Abstract

We report the development of electro-optic modulators by the incorporation of novel nanoplasmonic waveguides and advanced optical materials. First, nanoscale metal-insulator-metal plasmonic waveguides have been developed for the advantages of (1) small mode size and enhanced electric field, (2) acceptable propagation loss, and (3) efficient light coupling from a dielectric waveguide into a metal-insulator-metal waveguide. Novel plasmonic waveguides can also be developed based on transparent conducting oxides, which obeys the Drude model dispersion very well. In particular, they can realize so called “epsilon-near-zero” and supports extremely confined surface plasmons in the near infrared regime. Our recent work also demonstrated the extraordinary optical and electro-optic properties of graphene. In particular, greatly enhanced light absorption (up to 42.7%) by monolayer graphene over a broad spectral range is experimentally achieved. With a suitable gate voltage, the optical properties of both transparent conducting oxides and graphene can be significantly modified, resulting active plasmonic materials. Efficient electro-optic modulation is then achieved by either integration of graphene or transparent conducting oxide-based tunable materials.

Paper Details

Date Published:
Proc. SPIE 9010, Next-Generation Optical Networks for Data Centers and Short-Reach Links, 90100E; doi: 10.1117/12.2044155
Show Author Affiliations
Zhaolin Lu, Rochester Institute of Technology (United States)
Kaifeng Shi, Rochester Institute of Technology (United States)
Riaz R. Haque, Rochester Institute of Technology (United States)

Published in SPIE Proceedings Vol. 9010:
Next-Generation Optical Networks for Data Centers and Short-Reach Links
Atul K. Srivastava, Editor(s)

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