Journal
OPTICS EXPRESS
Volume 21, Issue 13, Pages 15490-15504Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.015490
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Funding
- Swiss National Science Foundation (SNSF) [133583]
- EU [300966]
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The concept, analysis, and design of series switches for graphene-strip plasmonic waveguides at near infrared frequencies are presented. Switching is achieved by using graphene's field effect to selectively enable or forbid propagation on a section of the graphene strip waveguide, thereby allowing good transmission or high isolation, respectively. The electromagnetic modeling of the proposed structure is performed using full-wave simulations and a transmission line model combined with a matrix-transfer approach, which takes into account the characteristics of the plasmons supported by the different graphene-strip waveguide sections of the device. The performance of the switch is evaluated versus different parameters of the structure, including surrounding dielectric media, electrostatic gating and waveguide dimensions. (C) 2013 Optical Society of America
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