Abstract

We present a method of determining the distribution of sizes of ferroelectric 180° domains in BaTiO₃, using second-harmonic scattering. We find that the domains are rods with approximately square cross sections that extend from the $-c$ to the $+c$ face of the crystal, with widths ranging from 2 to $150 \mathit{\mu }\mathrm{m}$.

© 1997 Optical Society of America

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