2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/134876A new, weakly damped, {\em transverse} electromagnetic mode is predicted in graphene. The mode frequency $ω$ lies in the window $1.667<\hbarω/μ<2$, where $μ$ is the chemical potential, and can be tuned from radiowaves to the infrared by changing the density of charge carriers through a gate voltage.5 pages, 4 figuresMesoscale and Nanoscale Physicstext