All-Optical Domain Inversion in LiNbO₃ Crystals by Visible Continuous-Wave Laser Irradiation.

ABSTRACT: LiNbO₃ is a distinguished multifunctional material where ferroelectric domain engineering is of paramount importance. This degree of freedom of the spontaneous polarization remarkably enhances the applicability of LiNbO₃, for instance, in photonics. In this work, we report the first method for all-optical domain inversion of LiNbO₃ crystals using continuous-wave visible light. While we focus mainly on iron-doped LiNbO₃, the applicability of the method is also showcased in undoped congruent LiNbO₃. The technique is simple, cheap, and readily accessible. It relies on ubiquitous elements: a light source with low/moderate intensity, basic optics, and a conductive surrounding medium, e.g., water. Light-induced domain inversion is unequivoca

SUBMITTER: Sebastian-Vicente C 

PROVIDER: S-EPMC11258989 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature