Nonreciprocal second harmonic generation in a magnetoelectric material
S. Toyoda, M. Fiebig, T. Arima, Yoshinori Tokura, N. Ogawa
Abstract
exhibits SHG transmission changes by almost 100% upon reversal of a magnetic field of just ±10 mT. The observed nonreciprocity results from an interference between magnetic-dipole and electric-dipole SHG. Although the former is inherently weaker than the latter, a resonantly enhanced magnetic-dipole transition has a comparable amplitude as a nonresonant electric-dipole transition, thus maximizing the nonreciprocity. Multiferroics and magnetoelectrics are an obvious materials platform to exhibit nonreciprocal nonlinear optical functionalities.
Topics & Concepts
Second-harmonic generationMagnetoelectric effectHigh harmonic generationHarmonicMaterials sciencePhysicsOptoelectronicsOpticsAcousticsMultiferroicsFerroelectricityDielectricLaserPhotorefractive and Nonlinear OpticsPhotonic Crystals and ApplicationsNonlinear Photonic Systems