Direct laser poling of lithium niobate on insulator with femtosecond laser
We demonstrated experimentally direct femtosecond writing of ferroelectric domains in lithium niobate on insulator. The fabricated ferroelectric domain structures were characterized using Cherenkov second harmonic microscopy and piezoresponse force microscopy. We also experimentally explored the far-field second harmonic generation from the laser-induced ferroelectric domain structures. This study opens the door for direct laser writing of lithium niobate-based integrated photonic circuits, which typically require on-chip frequency conversion and wavefront control.
Authors
- Yan Sheng (ORCID: https://orcid.org/0000-0001-6838-5101)
- Tianxiang Xu (ORCID: https://orcid.org/0000-0002-5492-0959)
- Wiesław Królikowski (ORCID: https://orcid.org/0000-0001-9214-7242)
- Ady Arie (ORCID: https://orcid.org/0000-0001-6486-7285)
- Feng Chen (ORCID: https://orcid.org/0000-0002-9277-9810)
Institutions
- Ningbo University (CN)
- Australian National University (AU)
- Shandong University (CN)
- Tel Aviv University (IL)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2024-11-18
- DOI
- https://doi.org/10.1063/5.0235673
- Citations
- 2
- Primary Topic
- Photorefractive and Nonlinear Optics
- Type
- article
- Field-Weighted Citation Impact
- 0.68
Funders
- National Natural Science Foundation of China
- Israel Science Foundation
- National Key Research and Development Program of China
- Natural Science Foundation of Zhejiang Province