High input intensities are usually required to efficiently produce nonlinear optical effects in
ultrathin structures due to their extremely weak nature. This problem is particularly critical at …

Strong nonlinear optical effects generally require giant optical fields interacting with the
nonlinear media. Doped graphene hosts electrically tunable plasmons with long lifetimes …

Nonlinear optics is an increasingly important field for scientific and technological
applications, owing to its relevance and potential for optical and optoelectronic technologies …

The nonlinear responses of different materials provide useful mechanisms for optical
switching, low noise amplification, and harmonic frequency generation. However, the …

Graphene possesses large Kerr nonlinearities that enabled the realization of energy-
efficient nonlinear optical devices. At the same time, electronic scattering of graphene …

Subwavelength graphene structures support localized plasmonic resonances in the
terahertz and mid-infrared spectral regimes. The strong field confinement at the resonant …

We study the propagation characteristics of surface Plasmon polaritons (SPPs) on a
patterned graphene sheet incorporating a subwavelength ribbon resonator and a Kerr …

Graphene plasmonics has recently found a variety of applications in terahertz photonic
devices. High spatial confinement and large frequency tunability are two key advantages of …

In this study, we demonstrate how field enhancement due to plasmonic resonances can
noticeably improve the efficiency of third harmonic generation (THG) from graphene sheets …

Graphene plasmons (GPs) are broadband and electrically tunable mid-infrared
(MIR)/terahertz (THz) excitations, exhibiting high confinement factors exceeding two orders …