POLARIZATION INVERSION METHOD AND POLARIZATION INVERSION DEVICE FOR FERROELECTRIC SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To form a polarization inversion part with high in-surface uniformity of a duty ratio on a large-area ferroelectric substrate and to provide a light wavelength converting element which has stable wavelength conversion efficiency, and a manufacturing method thereof.;SOLUTION: The polarization inversion method of the ferroelectric substrate comprises an electrode forming process of forming a first metal electrode which has a predetermined grid pattern on a top surface of the substrate made of ferroelectric crystal and an electrode pad at one end of the substrate, and forming a second electrode on the opposite surface from the top surface, and a polarization inversion forming process of forming a polarization inversion part on the substrate by applying an electric field between the electrode pad and second electrode.;COPYRIGHT: (C)2009,JPO&INPIT