Formation of regular domain structures using interfering laser beams and liquid electrodes with a giant extinction coefficient

Abstract

A method is proposed for formation of regular domain structures in ferroelectrics using interfering laser beams, a uniform electric field, and liquid electrodes with a giant extinction coefficient. It is shown that when using liquid electrodes, for example, based on a CdI2 aqueous solution with a 248 ÷ 266 nm photonic band gap, it is possible to create domain structures with a period of 6 ÷ 8 µm. The method is versatile for ferroelectrics of various degrees of transparency and birefringence, and is also characterized by a short duration of the process of formation of structures in ferroelectrics, such as LiNbO3, KTiOPO4, and PZT.