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在室温下，应用外加电场极化法对z切0．5mm厚的LiNbO3晶体实现了铁电畴反转，并成功地制备了LiNbO3铁电畴反转光栅。
At room temperature, the ferroelectric domain inversion was realized on the LiNbO3 crystal with z-cut 0.5mm thick by the applied electric field polarization method. The LiNbO3 ferroelectric domain inversion grating was successfully fabricated.