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Proceedings Paper

Nanoplasmonic couplers and modulators based on metal-insulator-metal structures
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Paper Abstract

We propose a "slot-to-slot" coupler to convert power between optical and metal-insulator-metal (MIM) plasmonic modes. Coupling efficiency of larger than 60% is obtained from 2D FDTD simulation. Based on this prototype, a quasi-MIM plasmonic junction is demonstrated using e-beam lithography onto an SOI substrate. The junction is formed by depositing a thin layer of gold (~20 nm) on part of a dielectric slot. When probed by 1520-nm laser, coupling efficiency of 36% is achieved for a 500-nm long quasi-MIM junction. Optical modulation is under investigation by pumping the device using visible light to change the optical property of gold.

Paper Details

Date Published: 12 February 2010
PDF: 8 pages
Proc. SPIE 7604, Integrated Optics: Devices, Materials, and Technologies XIV, 760419 (12 February 2010); doi: 10.1117/12.842084
Show Author Affiliations
Zhaolin Lu, Rochester Institute of Technology (United States)
Ruoxi Yang, Rochester Institute of Technology (United States)
Rami A. Wahsheh, Rochester Institute of Technology (United States)
M. A. G. Abushagur, Rochester Institute of Technology (United States)


Published in SPIE Proceedings Vol. 7604:
Integrated Optics: Devices, Materials, and Technologies XIV
Jean-Emmanuel Broquin; Christoph M. Greiner, Editor(s)

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