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Spontaneous emission rate and the density of states inside a one dimensional photonic crystal
Ebrahim Forati
Different densities of electromagnetic states inside a one dimensional photonic crystal (1D PC) are studied. Hertz vector formalism is used to calculate Green tensor inside a layer…
Density of Bloch states inside a one dimensional photonic crystal
Ebrahim Forati
The density of Bloch electromagnetic states inside a one dimensional photonic crystal (1D PC) is formulated based on its dispersion relations. The formulation applied to any anisot…
Photoemission-based microelectronic devices
Ebrahim Forati, Tyler J. Dill, Andrea Tao +1
The vast majority of modern microelectronic devices rely on carriers within semiconductors due to their integrability. Therefore, the performance of these devices is limited due to…
Magneto-optical metamaterial
Mehdi Sadatgol, Mahfuzur Rahman, Ebrahim Forati +2
We propose a new class of metamaterials called magneto-optical metamaterials that offer enhanced angle of rotation in polarization compared to bulk magneto-optical materials. In th…
A planar hyperlens based on a modulated graphene monolayer
Ebrahim Forati, George W. Hanson, Alexander B. Yakovlev +1
The canalization of terahertz surface plasmon polaritons using a modulated graphene monolayer is investigated for subwavelength imaging. An anisotropic surface conductivity formed…
Surface plasmon polaritons on soft-boundary graphene nanoribbons and their application as voltage controlled plasmonic switches and frequency demultiplexers
Ebrahim Forati, George W. Hanson
A graphene sheet gated with a ridged ground plane, creating a soft-boundary (SB) graphene nanoribbon, is considered. By adjusting the ridge parameters and bias voltage a channel ca…
Soft-boundary graphene nanoribbon formed by a graphene sheet above a perturbed ground plane: conductivity profile and SPP modal current distribution
Ebrahim Forati, George W. Hanson
An infinite sheet of graphene lying above a perturbed ground plane is studied. The perturbation is a two dimensional ridge, and a bias voltage is applied between the graphene and t…