title: Optical bistability of localized Josephson surface plasmons in cuprate superconductors.
abstract: Microparticles made of high-Tccuprate superconductors are characterized by localized plasmonic excitations known as Josephson surface plasmons, whose electromagnetic response is intrinsically nonlinear, giving rise to yet unexplored optical phenomena. In this work bistability effects in the near-resonance excitation of Josephson surface plasmons of dipolar symmetry are investigated for spheroidal superconducting particles. The threshold for the incident intensity is estimated, and experimental probing strategies are discussed. The system can be of interest in view of terahertz light switching and detection.
authors.forename: Filippo
authors.initials: F
authors.lastname: Alpeggiani