Visiting Research Seminar - Institute for Infrastructure Engineering (IIE)

You are invited to attend the Visiting Research Seminar at the Institute for Infrastructure Engineering.

Title of the seminar: Surface plasmon-polaritons in graphene: tunable excitation

Abstract: It is shown, that unique property of graphene - an ability to control its doping (and conductivity) through the external electrostatic gating - opens a possibility to tune dynamically the dispersion properties of surface plasmon-polaritons in graphene and control their excitation both in the attenuated total reflection (ATR) and in periodical diffraction grating schemes. In particular, by adjusting the external gate voltage of ATR structure with graphene layer, it is possible to tune the reflectance of the incident electromagnetic wave from total absorption to total reflection, as well as the polarization of reflected wave. Also graphene layer deposited on substrate with periodically modulated thickness or dielectric constant demonstrates band-gap structure of the spectrum, where positions of gap edges (as well as the resonant frequencies of surface plasmon-polaritons, excited due to diffraction of external wave on such a periodic structure) can be effectively tuned by external gate voltage.

For catering purposes, please RSVP to caroline.allen@uws.edu.au by 10am Friday 26 April 2013. Please advise if you have any special dietary requirements.