Rare-Earth Spontaneous Emission Control in Three-Dimensional Lithium Niobate Photonic Crystals

Authors

  • Airán Ródenas,

    1. GIEL, Departamento de Física de Materiales C-IV Facultad de Ciencias, Universidad Autónoma de Madrid Cantoblanco, Madrid 28049 (Spain)
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  • Guangyong Zhou,

    1. Centre for Micro-Photonics and Centre for Ultrahigh-bandwith Devices for Optical Systems Faculty of Engineering and Industrial Sciences Swinburne University of Technology P.O. Box 218 Hawthorn, VIC 3122 (Australia)
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  • Daniel Jaque,

    Corresponding author
    1. GIEL, Departamento de Física de Materiales C-IV Facultad de Ciencias, Universidad Autónoma de Madrid Cantoblanco, Madrid 28049 (Spain)
    • GIEL, Departamento de Física de Materiales C-IV Facultad de Ciencias, Universidad Autónoma de Madrid Cantoblanco, Madrid 28049 (Spain).
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  • Min Gu

    Corresponding author
    1. Centre for Micro-Photonics and Centre for Ultrahigh-bandwith Devices for Optical Systems Faculty of Engineering and Industrial Sciences Swinburne University of Technology P.O. Box 218 Hawthorn, VIC 3122 (Australia)
    • Centre for Micro-Photonics and Centre for Ultrahigh-bandwith Devices for Optical Systems Faculty of Engineering and Industrial Sciences Swinburne University of Technology P.O. Box 218 Hawthorn, VIC 3122 (Australia).
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Abstract

original image

Spontaneous emission inhibition of erbium ions at 1.5 µm wavelength is obtained by tailoring direct femtosecond-laser-written 3D photonic structures inside lithium niobate laser crystals. This technique allows for engineering of the structure symmetry and filling fraction by spatially inscribing laser-induced amorphous voxels inside the crystalline sample.

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