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Arbitrary fabrication of complex lithium niobate three-dimensional microstructures for second harmonic generation

Jia-Xin Zheng, Hong-Yu Li, Ke-Shuai Tian

    Optics Letters
    |February 15, 2024
    PubMed
    Summary

    A new femtosecond laser direct writing-assisted liquid back-etching (FsLDW-LBE) method enables efficient 3D microfabrication of lithium niobate (LN) crystals. This technique achieves high surface quality and enhances nonlinear optical properties, opening new avenues for integrated photonics.

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