Non-linear self-consistent response of graphene in time domain

TL;DR

This paper investigates the non-linear electromagnetic response of graphene under strong pulse excitation, highlighting unique radiative decay behaviors and potential for terahertz radiation generation.

Contribution

It introduces a self-consistent-field approach to analyze graphene's non-linear response, revealing distinct radiative decay characteristics compared to traditional 2D systems.

Findings

Radiative decay in graphene differs from conventional 2D electron systems

Strong pulse excitation induces non-linear electromagnetic behavior in graphene

Potential applications in terahertz radiation generation

Abstract

We study the non-linear electromagnetic response of graphene taking into account the self-consistent-field effects. Response of the system to a strong pulse excitation is calculated. It is shown that radiative decay in graphene differs from that of conventional two-dimensional electron systems both quantitatively and qualitatively. Possible applications of the predicted effects for generation of terahertz radiation are discussed.