Abstract
A parameterization of the dispersive conductivity of highly-doped graphene has been developed and is presented for use in finite-difference time-domain simulation of near infrared graphene-based photonic and plasmonic devices. The parameterization is based on fitting a Padé approximant to the conductivity arising from interband electronic transitions. The resulting parameterization provides an accurate spectral representation of the conductivity in the wavelength range 1.3-2.3μm which is important for near infrared graphene plasmonics. Finite-difference time-domain simulations of straight graphene plasmonic waveguides of infinite and finite width are presented.
Original language | English |
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Pages (from-to) | 771-781 |
Number of pages | 11 |
Journal | Optical Materials Express |
Volume | 2 |
Issue number | 6 |
DOIs | |
State | Published - 2012 |