Periodically poled lithium niobate with submicrometer periodicity using electric-field poling technique
Abstract
A series of monocrystalline lithium niobate (LN) thin films on low-resistivity silicon (LNOS) substrates, with thicknesses ranging from micrometers down to tens of nanometers, were prepared through chemical-mechanical polishing of pristine crystal films. By employing the electric-field poling technique, high-quality periodically poled lithium niobate (PPLN) structures with submicrometer periodicity were fabricated in these LNOSs, and full-thickness polarization reversal beneath the poling electrodes with a well-defined depth profile was achieved. The coercive field was found to follow the Kay-Dunn scaling law, while the lateral domain broadening generally increased with increasing film thickness, and it remained approximately constant across different electrode linewidths at a given film thickness. PPLN structures with periods ranging from 6 μm down to 200 nm were demonstrated. These findings provide guidance for poling electrode design and lateral domain broadening pre-compensation, offering a practical route toward scalable domain engineering in LN thin films with promising potential for compact and highly integrated nonlinear photonic devices.
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BibTeX
@misc{zhang2026periodically,
title = {{Periodically poled lithium niobate with submicrometer periodicity using electric-field poling technique}},
author = {Yuchen Zhang and Sanbing Li and Shengbo Song and Xitan Xu and Xudong Tong and Rui Yang and Meiyu Liu and Jiangdong Sun and Feng Gao and Fang Bo and Jingjun Xu and Guoquan Zhang},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.05009},
eprint = {2611.05009},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.05009},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Periodically poled lithium niobate with submicrometer periodicity using electric-field poling technique
AU - Yuchen Zhang
AU - Sanbing Li
AU - Shengbo Song
AU - Xitan Xu
AU - Xudong Tong
AU - Rui Yang
AU - Meiyu Liu
AU - Jiangdong Sun
AU - Feng Gao
AU - Fang Bo
AU - Jingjun Xu
AU - Guoquan Zhang
PY - 2026
DA - 2026/11/03
PB - arXiv
DO - 10.48550/arxiv.2611.05009
UR - https://arxiv.org/abs/2611.05009
AB - A series of monocrystalline lithium niobate (LN) thin films on low-resistivity silicon (LNOS) substrates, with thicknesses ranging from micrometers down to tens of nanometers, were prepared through chemical-mechanical polishing of pristine crystal films. By employing the electric-field poling technique, high-quality periodically poled lithium niobate (PPLN) structures with submicrometer periodicity were fabricated in these LNOSs, and full-thickness polarization reversal beneath the poling electrodes with a well-defined depth profile was achieved. The coercive field was found to follow the Kay-Dunn scaling law, while the lateral domain broadening generally increased with increasing film thickness, and it remained approximately constant across different electrode linewidths at a given film thickness. PPLN structures with periods ranging from 6 μm down to 200 nm were demonstrated. These findings provide guidance for poling electrode design and lateral domain broadening pre-compensation, offering a practical route toward scalable domain engineering in LN thin films with promising potential for compact and highly integrated nonlinear photonic devices.
ER -